Publikationen

Meine Publikationen

@book{KS25,
author = "Köppen, Veit and Strickroth, Sven",
title = "23. Fachtagung Bildungstechnologien (DELFI 2025) – Complete Volume",
year = 2025,
doi = "10.18420/delfi2025",
publisher = "Gesellschaft für Informatik e.V.",
address = "Bonn",
pissn = "2944-7682",
}

@incollection{KH25,
author = "Köppen, Veit and Hawlitschek, Anja",
title = "Supporting Program Comprehension with Digital Learning Journals: Experiences from a Course with Non-CS Students",
year = 2025,
doi = "10.18420/delfi2025_33",
booktitle = "23. Fachtagung Bildungstechnologien (DELFI 2025)",
publisher = "Gesellschaft für Informatik e.V.",
address = "Bonn",
pissn = "2944-7682",
pages = "307--311",
}

@misc{TIBKAT:1898062838,
	title = "Schlussbericht des Teilprojektes: \"Digitales Programmieren im Team: Didaktische Konzepte und Datenmanagement\" des Verbundprojektes \"DiP-iT. Digitales Programmieren im Team\" : im Rahmen der Richtlinie zur Förderung von Forschung zur digitalen Hochschulbildung : Projektlaufzeit: 01.02.2020-31.01.2023",
	author = "Hawlitschek, Anja and Broneske, David and Berndt, Sarah and Wolff, Ian and Pohlenz, Philipp and Köppen, Veit and Saake, Gunter",
	publisher = "Otto-von-Guericke Universität Magdeburg; ",
	address = "Magdeburg",
	url = "https://www.tib.eu/de/suchen/id/TIBKAT%3A1898062838",
	doi = "10.2314/KXP:1898062838",
	year = "2023",
}

@article{koppen_user_2020,
	title = {User {Story}: {Besuchernachweis} im {Covid}-19-{Kontext}},
	doi = {10.5282/O-BIB/5609},
	abstract = {Die Corona-Pandemie führte in Bibliotheken nicht nur zu massiven Umstellungen hinsichtlich digitaler Angebote, auch der Publikumsverkehr ist im Zuge der Wiedereröffnung durch Regelungen neugestaltet. In diesem Zusammenhang müssen einerseits ministerielle Vorgaben zur Nachverfolgung von potentiellen Kontakten beachtet werden und andererseits datenschutzrechtliche Belange. Auch die unkomplizierte Nutzung und zugleich schnelle Erfassung spielen eine hohe Priorität im Kontext eines kontaktarmen, aber durchsatzstarken Betriebes. An der Universitätsbibliothek Magdeburg wurde hier eine Lösung entwickelt, die viele Anforderungen ohne zusätzlichen Ressourceneinsatz abdeckt und zugleich zur Nachnutzung in anderen Einrichtungen zur Verfügung steht. Im vorliegenden Beitrag werden die Anforderungen kurz dargestellt, die im agilen Projektmanagement entwickelte Software beschrieben und Potentiale für eine Nach- und Weiternutzung aufgrund der ersten Betriebserfahrungen aufgezeigt.},
	author = {Köppen, Veit and Bosse, Sascha and Schulz, Christian},
	month = jan,
	year = {2020},
	pages = {1--11},
	journal = {o-bib. Das offene Bibliotheksjournal / Herausgeber VDB},
	url = {https://www.o-bib.de/bib/article/view/5609/8105}
	note = {Publisher: o-bib. Das offene Bibliotheksjournal / Herausgeber VDB},
	file = {Full Text:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\ZS34894E\\Köppen, Bosse et al. 2020 - User Story.pdf:application/pdf},
}

@article{koppen_managementunterstutzung_2021,
	title = {Managementunterstützung zur {Besuchersteuerung} in {Bibliotheken}: {Reportingprozesse} im {Coronakontext}},
	volume = {45},
	issn = {0341-4183},
	doi = {10.1515/bfp-2020-0118},
	number = {1},
	journal = {Bibliothek Forschung und Praxis},
	author = {Köppen, Veit and Lücke, Christine},
	month = jan,
	year = {2021},
	pages = {135--142},
	file = {Full Text:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\7XVESD95\\Köppen, Lücke 2021 - Managementunterstützung zur Besuchersteuerung in Bibliotheken.pdf:application/pdf},
}

@article{obionwu_sqlvalidator_2021,
	title = {{SQLValidator} – {An} {Online} {Student} {Playground} to {Learn} {SQL}},
	volume = {21},
	issn = {1618-2162},
	doi = {10.1007/s13222-021-00372-0},
	number = {2},
	journal = {Datenbank-Spektrum},
	author = {Obionwu, Victor and Broneske, David and Hawlitschek, Anja and Köppen, Veit and Saake, Gunter},
	month = jan,
	year = {2021},
	pages = {73--81},
	file = {Full Text:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\8UWQQEWC\\Obionwu, Broneske et al. 2021 - SQLValidator.pdf:application/pdf},
}

@article{wolff_fallbeispiel_2023,
	title = {Ein {Fallbeispiel} zum {Umgang} mit {Learning}-{Analytics}-{Forschungsdaten}},
	doi = {10.5282/O-BIB/5896},
	abstract = {Offene Wissenschaft in die Praxis umzusetzen, bringt für jede Fachwissenschaft und Wissenschaftler*innen Herausforderungen mit sich. Mit dem Aufkommen von Data Librarians hat sich ein neues Berufsbild etabliert, mit dem wissenschaftliche Bibliotheken die Prozesse im Forschungsdatenmanagement umsetzen können. In diesem Beitrag werden die grundsätzlichen Rollen und Aufgaben von Data Librarians erläutert und ihr spezifischer Einsatz im Rahmen des BMBF-Forschungsprojekts DiP-iT aufgezeigt. Ausgehend von einer gemeinsamen Verständigungsebene in Form eines Dateninterviews wurden fachspezifische Konzepte für die Learning Analytics in den Bereichen Datendokumentation, -kuration und -organisation entwickelt. Ergebnisse sind ein Datentransfermodell, das die Speicherung der Daten in verschiedenen Domänen unter Einbezug datenschutzrechtlicher Rahmenbedingungen ermöglicht, und die detaillierte und fachspezifische Dokumentation der Daten anhand eines Learning Analytics Metadatenmodells.},
	author = {Wolff, Ian and Zug, Sebastian and Köppen, Veit},
	month = jan,
	journal = {o-bib. Das offene Bibliotheksjournal / Herausgeber VDB},
	year = {2023},
	note = {Publisher: o-bib. Das offene Bibliotheksjournal / Herausgeber VDB},
	pages = {1--20},
	file = {Full Text:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\H8R4YPZA\\Wolff, Zug et al. 2023 - Ein Fallbeispiel zum Umgang.pdf:application/pdf},
}

@inproceedings{koppen_balanced_2007,
	address = {Berlin, Heidelberg},
	series = {Studies in {Classification}, {Data} {Analysis}, and {Knowledge} {Organization}},
	title = {Balanced {Scorecard} {Simulator} — {A} {Tool} for {Stochastic} {Business} {Figures}},
	isbn = {978-3-540-70980-0},
	booktitle = {Advances in {Data} {Analysis}: {Proceedings} of the 30th {Annual} {Conference} of the {Gesellschaft} für {Klassifikation} e.{V}., {Freie} {Universität} {Berlin}, {March} 8-10, 2006},
	publisher = {Scholars Portal},
	author = {Köppen, Veit and Allgeier, Marina and Lenz, Hans-J.},
	editor = {Decker, Reinhold and Lenz, Hans-J.},
	month = jan,
	year = {2007},
	doi = {10.1007/978-3-540-70981-7_52},
	pages = {457--464},
	file = {Full Text:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\4HMSNQ6K\\Köppen, Allgeier et al. 2007 - Balanced Scorecard Simulator.pdf:application/pdf},
}

@incollection{wolf_mit_2024,
	address = {Wiesbaden, Germany},
	title = {Mit dem {World} {Café} zur {Open} {Library} - oder wie partizipative {Methoden} bei der {Umsetzung} eines {Projektes} helfen},
	booktitle = {Yes, we're open! {Open} {Libraries} innovativ und praxisnah umsetzen},
	publisher = {b.i.t.verlag},
	author = {Wolf, Sabine and Köppen, Veit},
	year = {2024},
	pages = {37--59},
}

@article{hawlitschek_personalisiertes_2024,
	title = {Personalisiertes {Lernen} mit und durch {IT}: {Zwischen} {Algorithmierung}, {Ermöglichung} und {Unterstützung}},
	issn = {1614-0451},
	url = {https://www.hqsl-bibliothek.de/},
	number = {88},
	journal = {Handbuch Qualität in Studium, Lehre und Forschung},
	author = {Hawlitschek, Anja and Köppen, Veit},
	year = {2024},
	pages = {55--88},
}

@misc{hawlitschek_schlussbericht_2023,
	title = {Schlussbericht des {Teilprojektes}: "{Digitales} {Programmieren} im {Team}: {Didaktische} {Konzepte} und {Datenmanagement}" des {Verbundprojektes} "{DiP}-{iT}. {Digitales} {Programmieren} im {Team}" : im {Rahmen} der {Richtlinie} zur {Förderung} von {Forschung} zur digitalen {Hochschulbildung} : {Projektlaufzeit}: 01.02.2020-31.01.2023},
	url = {https://www.tib.eu/suchen/id/TIBKAT:1898062838},
	language = {de},
	publisher = {Otto-von-Guericke Universität Magdeburg},
	author = {Hawlitschek, Anja and Broneske, David and Berndt, Sarah and Wolff, Ian and Pohlenz, Philipp and Köppen, Veit and Saake, Gunter},
	year = {2023},
	doi = {10.2314/KXP:1898062838},
	doi = {10.2314/KXP:1898062838},
	keywords = {Computer Science},
}

@inproceedings{wolff_towards_2022,
	title = {Towards a {Learning} {Analytics} {Metadata} {Model}},
	booktitle = {Companion {Proceedings} of the 12th},
	author = {Wolff, Ian and Broneske, David and Köppen, Veit},
	month = mar,
	year = {2022},
	pages = {51--53},
}

@article{wolff_first_2021,
	title = {A first metadata schema for learning analytics research data management},
	copyright = {Creative Commons Attribution 4.0 International},
	url = {https://www.o-bib.de/bib/article/view/5735},
	doi = {10.5282/O-BIB/5735},
	language = {en},
	journal = {o-bib. Das offene Bibliotheksjournal / Herausgeber VDB},
	author = {Wolff, Ian and Broneske, David and Köppen, Veit},
	year = {2021},
	note = {Publisher: o-bib. Das offene Bibliotheksjournal / Herausgeber VDB},
	pages = {Bd. 8 Nr. 4 (2021)},
	file = {Full Text PDF:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\FK6DXMBK\\Wolff et al. - 2021 - first metadata schema for learning analytics research data management.pdf:application/pdf},
}

@article{schaler_towards_2021,
	title = {Towards multi-purpose main-memory storage structures: {Exploiting} sub-space distance equalities in totally ordered data sets for exact knn queries},
	volume = {101},
	url = {https://doi.org/10.1016%2Fj.is.2021.101791},
	doi = {10.1016/j.is.2021.101791},
	journal = {Information Systems},
	author = {Schäler, Martin and Tex, Christine and Köppen, Veit and Broneske, David and Saake, Gunter},
	month = nov,
	year = {2021},
	note = {Publisher: Elsevier BV},
	pages = {101791},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\5SFSA68N\\Schäler et al. - 2021 - Towards multi-purpose main-memory storage structures Exploiting sub-space distance equalities in to.pdf:application/pdf},
}

@inproceedings{wolff_fair_2021,
	title = {{FAIR} {Research} {Data} {Management} for {Learning} {Analytics}},
	url = {https://repositorium.hs-ruhrwest.de/frontdoor/deliver/index/docId/733/file/DELFI_2021_WS.pdf},
	booktitle = {Proceedings of {DELFI} {Workshop}},
	author = {Wolff, Ian and Broneske, David and Köppen, Veit},
	year = {2021},
	pages = {158--163},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\2HTC5WRX\\Wolff et al. - 2021 - FAIR Research Data Management for Learning Analytics.pdf:application/pdf},
}

@misc{wolff_lamm_2021,
	title = {{LAMM} - {Learning} {Analytics} {Metadata} {Model}},
	copyright = {Creative Commons Attribution 4.0 International},
	url = {http://open-science.ub.ovgu.de/xmlui/handle/684882692/97},
	language = {en},
	publisher = {Otto von Guericke University, Library, Magdeburg, Germany},
	author = {Wolff, Ian and Broneske, David and Köppen, Veit},
	year = {2021},
	doi = {10.24352/UB.OVGU-2022-013},
}

@inproceedings{blockhaus_combining_2020,
	title = {Combining {Two} {Worlds}: {MonetDB} with {Multi}-{Dimensional} {Index} {Structure} {Support} to {Efficiently} {Query} {Scientific} {Data}},
	url = {https://doi.org/10.1145%2F3400903.3401691},
	doi = {10.1145/3400903.3401691},
	booktitle = {32nd {International} {Conference} on {Scientific} and {Statistical} {Database} {Management}},
	publisher = {ACM},
	author = {Blockhaus, Paul and Broneske, David and Schäler, Martin and Köppen, Veit and Saake, Gunter},
	month = jul,
	year = {2020},
}

@article{hawlitschek_drop-out_2019,
	title = {Drop-out in programming courses – prediction and prevention},
	volume = {ahead-of-print},
	url = {https://doi.org/10.1108%2Fjarhe-02-2019-0035},
	doi = {10.1108/jarhe-02-2019-0035},
	number = {ahead-of-print},
	journal = {Journal of Applied Research in Higher Education},
	author = {Hawlitschek, Anja and Köppen, Veit and Dietrich, André and Zug, Sebastian},
	month = jul,
	year = {2019},
	note = {Publisher: Emerald},
}

@article{broneske_efficient_2019,
	title = {Efficient {Evaluation} of {Multi}-{Column} {Selection} {Predicates} in {Main}-{Memory}},
	volume = {31},
	issn = {2326-3865},
	url = {http://dx.doi.org/10.1109/tkde.2018.2825349},
	doi = {10.1109/tkde.2018.2825349},
	number = {7},
	journal = {IEEE Transactions on Knowledge and Data Engineering},
	author = {Broneske, David and Köppen, Veit and Saake, Gunter and Schäler, Martin},
	month = jul,
	year = {2019},
	note = {Publisher: Institute of Electrical and Electronics Engineers (IEEE)},
	pages = {1296--1311},
}

@masterthesis{koppen_warenkorbanalyse_2019,
	title = {Warenkorbanalyse für {Empfehlungssysteme} in wissenschaftlichen {Bibliotheken}},
	copyright = {(CC BY 3.0 DE) Namensnennung 3.0 Deutschland},
	url = {https://edoc.hu-berlin.de/handle/18452/20833},
	doi = {10.18452/20078},
	language = {de},
	author = {Köppen, Veit},
	year = {2019},
	note = {Publisher: Humboldt-Universität zu Berlin},
	keywords = {020 Bibliotheks- und Informationswissenschaften, Ausleihe, Bibliothek, Data Mining, Empfehlungssystem},
	file = {Full Text PDF:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\89347UA7\\Köppen - 2019 - Warenkorbanalyse für Empfehlungssysteme in wissenschaftlichen Bibliotheken.pdf:application/pdf},
}

@article{koppen_nutzeranforderungen_2019,
	title = {Nutzeranforderungen an {Computerarbeitsplätze} in {Bibliotheken}: {Eine} {Fallstudie} an der {Universitätsbibliothek} der {Otto}-von-{Guericke}-{Universität} {Magdeburg}},
	volume = {53},
	issn = {0006-1972},
	url = {http://dx.doi.org/10.1515/bd-2019-0026},
	doi = {10.1515/bd-2019-0026},
	number = {3–4},
	journal = {Bibliotheksdienst},
	author = {Köppen, Veit},
	month = mar,
	year = {2019},
	note = {Publisher: Walter de Gruyter GmbH},
	pages = {169--180},
	file = {Full Text PDF:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\IQEUKAS4\\Köppen - 2019 - Nutzeranforderungen an Computerarbeitsplätze in Bibliotheken Eine Fallstudie an der Universitätsbib.pdf:application/pdf},
}

@incollection{koppen_index_2019,
	title = {Index {Structures} for {Data} {Warehousing} and {Big} {Data} {Analytics}},
	url = {https://doi.org/10.4018%2F978-1-5225-5516-2.ch008},
	booktitle = {Emerging {Perspectives} in {Big} {Data} {Warehousing}},
	publisher = {IGI Global},
	author = {Köppen, Veit and Schäler, Martin and Broneske, David},
	year = {2019},
	doi = {10.4018/978-1-5225-5516-2.ch008},
	pages = {182--197},
}

@inproceedings{lodhi_streamlining_2018,
	title = {Streamlining processes for digitalization},
	booktitle = {11th IADIS International Conference Information Systems 2018},
	isbn = {978-989-8533-74-6},
	author = {Lodhi, Azeem and Köppen, Veit and Saake, Gunter and Turowski, Klaus},
	year = {2018},
	pages = {95--104},
	abstract = {New trends and technological developments bring opportunities and threats for enterprises at the same time. Organizations which do not adapt their strategies have to fight for their survival. Information Technology plays vital role in this evolution. Enterprises still need a seamless process from idea initiation till its implementation and improvement. The gap exists between the research and its application in an enterprise. Organization need to streamline their processes for Digitalization. In this paper, we provide an analytical framework for analysis and improvement of business processes. We also propose an analytical process modelling language to support the framework and to identify the deficiencies in processes. We also provide constructs and patterns of our proposed modeling language which are independent of a specific modeling language. The analytical business process modeling language is further explained with the help of a case study and demonstrated by extending an existing modeling language. }
}

@inproceedings{broneske_accelerating_2017,
	title = {Accelerating {Multi}-{Column} {Selection} {Predicates} in {Main}-{Memory} - {The} {Elf} {Approach}},
	url = {https://doi.org/10.1109%2Ficde.2017.118},
	doi = {10.1109/icde.2017.118},
	booktitle = {2017 {IEEE} 33rd {International} {Conference} on {Data} {Engineering} ({ICDE})},
	publisher = {IEEE},
	author = {Broneske, David and Köppen, Veit and Saake, Gunter and Schäler, Martin},
	month = apr,
	year = {2017},
}

@inproceedings{khan_evaluation_2017,
	title = {An {Evaluation} of {Variability} {Mechanisms} to {Manage} {Cloud} {Services}},
	isbn = {978-989-758-257-8},
	doi = {10.5220/0006421401000107},
	booktitle = {Proceedings of the 14th {International} {Joint} {Conference} on e-{Business} and {Telecommunications} - {Volume} 4: {ICE}-{B}, ({ICETE} 2017)},
	publisher = {SciTePress},
	author = {Khan, Ateeq and Pohl, Matthias and Köppen, Veit and Saake, Gunter and Turowski, Klaus},
	year = {2017},
	note = {Backup Publisher: INSTICC},
	pages = {100--107},
	file = {Eingereichte Version:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\YXSKJAXR\\Khan et al. - 2017 - An Evaluation of Variability Mechanisms to Manage Cloud Services.pdf:application/pdf},
}

@article{koppen_elf_2016,
	title = {Elf: {A} {Main}-{Memory} {Index} for {Efficient} {Multi}-{Dimensional} {Range} and {Partial} {Match} {Queries}},
	volume = {3},
	issn = {2349 - 3224},
	url = {http://www.ijaetmas.com/wp-content/uploads/2017/01/IJ16M1216.pdf},
	abstract = {Efficient evaluation of selection predicates (e.g., range predicates) defined on multiple columns of the same table is a difficult, but nevertheless important task. As we have seen an enormous increase of data within the last decade, efficient multi-dimensional selection predicate evaluation becomes more important. This is especially important for scientific data management tasks, where we often face data sets that need to be filtered based on several dimensions. So far, the state-of-the-art solution strategy is to apply highly optimized sequential scans. However, the intermediate results are often large, while the final query result often only contains a small fraction of the data set. This is due to the combined selectivity of all predicates. We propose Elf - a new tree-based approach to efficiently support such queries. Our structure indexes densely populated sub-spaces allowing for efficient pruning.},
	number = {12},
	journal = {International Journal Of Advancement In Engineering Technology, Management and Applied Science (IJAETMAS)},
	author = {Köppen, Veit and Broneske, David and Schäler, Martin and Saake, Gunter},
	month = dec,
	year = {2016},
	keywords = {data analytics, indexing, main-memory databases, storage structures},
	pages = {96--105},
}

@inproceedings{koppen_analytical_2015,
	title = {An analytical model for data persistence in {Business} {Data} {Warehouses}},
	url = {https://doi.org/10.1109%2Frcis.2015.7128896},
	doi = {10.1109/rcis.2015.7128896},
	booktitle = {2015 {IEEE} 9th {International} {Conference} on {Research} {Challenges} in {Information} {Science} ({RCIS})},
	publisher = {IEEE},
	author = {Köppen, Veit and Winsemann, Thorsten and Saake, Gunter},
	month = may,
	year = {2015},
	file = {Eingereichte Version:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\IJE6UI9B\\Köppen et al. - 2015 - An analytical model for data persistence in Business Data Warehouses.pdf:application/pdf},
}

@techreport{koppen_elf_2015,
	address = {Magdeburg},
	title = {Elf: {A} {Main}-{Memory} {Structure} for {Efficient} {Multi}-{Dimensional} {Range} and {Partial} {Match} {Queries}},
	url = {http://www.inf.ovgu.de/inf_media/downloads/forschung/technical_reports_und_preprints/2015/02_2015.pdf},
	number = {002-2015},
	institution = {Otto-von-Guericke-University Magdeburg},
	author = {Köppen, Veit and Broneske, David and Saake, Gunter and Schäler, Martin},
	month = dec,
	year = {2015},
	note = {ISSN: 1869-5078},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\KUKH9P5B\\Köppen et al. - 2015 - Elf A Main-Memory Structure for Efficient Multi-Dimensional Range and Partial Match Queries.pdf:application/pdf},
}

@article{koppen_impacts_2015,
	title = {Impacts on {Database} {Performance} in a {Privacy}-{Preserving} {Biometric} {Authentication} {Scenario}},
	volume = {8},
	issn = {1942 - 2636},
	url = {http://www.iariajournals.org/security/sec_v8_n12_2015_paged.pdf#page=107},
	abstract = {Nowadays, biometric data are more and more used within authentication processes. Such data are usually stored in databases and underlie inherent privacy concerns. Therefore, special attention should be paid to their handling. We propose an extension to an existing privacy preserving similarity verification system. The Paillier scheme, being an asymmetric as well as additive homomorphic cryptography approach, enables signal processing in the encrypted domain operations. Amongst other modifications, we introduce a padding approach to increase entropy for better filling the co-domain. As a result, we combine the benefits of signal processing in the encrypted domain with the advantages of salting. The concept of verification of encrypted biometric data comes at the cost of increased computational effort in contrast to already available biometric systems. Nevertheless, this additional cost is in many scenarios justified by addressing that most currently available biometric authentication systems lack sufficient privacy protection. In our evaluation, we focus on performance issues of the privacy-preserving biometric authentication scheme with respect to database response time. The results presented for different evaluations on the influence of numbers of users, template sizes, and cryptographic key lengths show that the increase in effort required caused by our extensions is negligible. Furthermore, our improved scheme lowers the error rates attached as well as it reduces the amount of data that is disclosed in an authentication attempt. Our work highlights that user- and privacy-centric approaches to authentication have become feasible in the last few years. Modern schemes, as the one discussed in this paper, are not only efficient but also make the usage of data mining techniques in the domain of user tracking much more difficult.},
	number = {1+2},
	journal = {International Journal on Advances in Security},
	author = {Köppen, Veit and Krätzer, Christian and Dittmann, Jana and Saake, Gunter and Vielhauer, Claus},
	year = {2015},
	pages = {99--108},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\T6Y3SUBQ\\Köppen et al. - 2015 - Impacts on Database Performance in a Privacy-Preserving Biometric Authentication Scenario.pdf:application/pdf},
}

@inproceedings{koppen_performance_2015,
	address = {Hamburg},
	series = {{LNI}},
	title = {On {Performance} {Optimization} {Potentials} {Regarding} {Data} {Classification} in {Forensics}},
	volume = {242},
	url = {http://btw-2015.de/res/proceedings/Workshops/DBforBFS/DBforBFS-01_Koeppen-On_Performance.pdf},
	booktitle = {Datenbanksysteme für {Business}, {Technologie} und {Web} ({BTW} 2015) – {Workshopband}},
	publisher = {Köllen Verlag},
	author = {Köppen, Veit and Hildebrandt, Mario and Schäler, Martin},
	editor = {Ritter, Norbert and Henrich, Andreas and Lehner, Wolfgang and Thor, Andreas and Friedrich, Steffen and Wingerath, Wolfram},
	year = {2015},
	note = {event-place: Hamburg, Germany},
	pages = {21--36},
}

@inproceedings{will_flexibility_2014,
	title = {Flexibility in {SOA} {Operations}: {The} {Need} for a {Central} {Service} {Component}},
	url = {https://doi.org/10.1109%2Fedocw.2014.51},
	doi = {10.1109/edocw.2014.51},
	booktitle = {2014 {IEEE} 18th {International} {Enterprise} {Distributed} {Object} {Computing} {Conference} {Workshops} and {Demonstrations}},
	publisher = {IEEE},
	author = {Will, Liane and Köppen, Veit and Saake, Gunter},
	month = sep,
	year = {2014},
}

@inproceedings{lubcke_relational_2014,
	title = {Relational on demand data management for {IT}-services},
	url = {https://doi.org/10.1109%2Frcis.2014.6861078},
	doi = {10.1109/rcis.2014.6861078},
	booktitle = {2014 {IEEE} {Eighth} {International} {Conference} on {Research} {Challenges} in {Information} {Science} ({RCIS})},
	publisher = {IEEE},
	author = {Lübcke, Andreas and Schäler, Martin and Köppen, Veit and Saake, Gunter},
	month = may,
	year = {2014},
}

@inproceedings{lodhi_business_2014,
	title = {Business {Process} {Modeling} {Language} for {Performance} {Evaluation}},
	url = {https://doi.org/10.1109%2Fhicss.2014.469},
	doi = {10.1109/hicss.2014.469},
	booktitle = {2014 47th {Hawaii} {International} {Conference} on {System} {Sciences}},
	publisher = {IEEE},
	author = {Lodhi, Azeem and Köppen, Veit and Wind, Stefan and Saake, Gunter and Turowski, Klaus},
	month = jan,
	year = {2014},
	file = {Full Text PDF:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\APLLDYH7\\Lodhi et al. - 2014 - Business Process Modeling Language for Performance Evaluation.pdf:application/pdf},
}

@inproceedings{hawlitschek_analyzing_2014,
	title = {Analyzing {Player} {Behavior} in {Digital} {Game}-{Based} {Learning}: {Advantages} and {Challenges}},
	isbn = {978-1-910309-55-1},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/HK14.pdf},
	booktitle = {8th {European} {Conference} on {Games} {Based} {Learning}},
	publisher = {Academic Conferences and Publishing International Limited},
	author = {Hawlitschek, Anja and Köppen, Veit},
	editor = {Busch, Carsten},
	year = {2014},
	pages = {199--206},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\4MMSEDWH\\Hawlitschek und Köppen - 2014 - Analyzing Player Behavior in Digital Game-Based Learning Advantages and Challenges.pdf:application/pdf},
}

@book{koppen_data_2014,
	address = {Heidelberg},
	edition = {2.Auflage 2014},
	title = {Data {Warehouse} {Technologien}},
	isbn = {978-3-8266-9588-9},
	language = {DEUTSCH},
	publisher = {mitp/bhv},
	author = {Köppen, Veit and Saake, Gunter and Sattler, Kai-Uwe},
	year = {2014},
	keywords = {Data-Warehouse-Konzept},
}

@article{koppen_datenpersistenz_2014,
	title = {Datenpersistenz im {Data} {Warehouse} - {Analytische} {Anwendungen} im {Blick}},
	url = {http://www.tdwi.eu/publikationen/bi-spektrum/archiv/archiv-detailansicht/?tx_mwjournals_pi1[pointer]=0{\&}tx_mwjournals_pi1[mode]=1{\&}tx_mwjournals_pi1[showUid]=473},
	number = {02},
	journal = {BISpektrum},
	author = {Köppen, Veit and Winsemann, Thorsten},
	year = {2014},
	pages = {27--29},
}

@inproceedings{dittmann_performance_2014,
	title = {Performance {Impacts} in {Database} {Privacy}-{Preserving} {Biometric} {Authentication}},
	isbn = {978-1-61208-376-6},
	url = {http://www.thinkmind.org/index.php?view=article{\&}articleid=securware_2014_5_30_30085},
	booktitle = {{SECURWARE} 2014: {The} {Eighth} {International} {Conference} on {Emerging} {Security} {Information}, {Systems} and {Technologies}},
	publisher = {IARA},
	author = {Dittmann, Jana and Köppen, Veit and Krätzer, Christian and Leuckert, Martin and Saake, Gunter and Vielhauer, Claus},
	editor = {Falk, Rainer and Westphall, Carlos Becker},
	year = {2014},
	note = {ISSN: 2162-2116
Place: Lisbon, Portugal},
	pages = {111--117},
}

@inproceedings{broneske_software_2014,
	series = {{CEUR} {Workshop} {Proceedings}},
	title = {Software {Design} {Approaches} for {Mastering} {Variability} in {Database} {Systems}},
	volume = {1313},
	url = {http://ceur-ws.org/Vol-1313/paper_9.pdf},
	booktitle = {{GvD}},
	author = {Broneske, David and Dorok, Sebastian and Köppen, Veit and Meister, Andreas},
	month = oct,
	year = {2014},
	pages = {47--52},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\6RV79DPA\\Broneske et al. - 2014 - Software Design Approaches for Mastering Variability in Database Systems.pdf:application/pdf},
}

@book{hansen_christian_tagungsband_2014,
	title = {Tagungsband der {Magdeburger}-{Informatik}-{Tage} 3. {Doktorandentagung} 2014},
	isbn = {978-3-944722-12-2},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/HKK+14.pdf},
	publisher = {Otto-von-Guericke-Universität Magdeburg},
	author = {Hansen, Christian and Knoll, Stefan and Köppen, Veit and Krempl, Georg and Krull, Claudia and Schallehn, Eike},
	editor = {Hansen, Christian, Christian and Knoll, Stefan and Köppen, Veit and Krempl, Georg and Krull, Claudia and Schallehn, Eike},
	year = {2014},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\UXWG6GRV\\Hansen et al. - 2014 - Tagungsband der Magdeburger-Informatik-Tage 3. Doktorandentagung 2014.pdf:application/pdf},
}

@inproceedings{koppen_toward_2014,
	title = {Toward {Variability} {Management} to {Tailor} {High} {Dimensional} {Index} {Implementations}},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/KSS14.pdf},
	abstract = {The increasing amount of complex data requires a solution to store and query these data efficiently. One possibility to speed-up various query types is the application of high dimensional index structures. In prior work, we introduced QuEval as platform to evaluate these indexes for user-defined use cases. Our design allows to easily extend QuEval with new index structure implementations. However, based on our experiences, we encountered severe challenges by tailoring index structure implementations to specific use cases. In particular, we face challenges to manage several similar implementation variants of the same index. In this paper, we consequently show benefits and drawbacks that emphasize the necessity to tailor index structure implementations with the help of a short evaluation study. Finally, we outline approaches for adequate variability management to address the aforementioned drawbacks.},
	booktitle = {{IEEE} {Eighth} {International} {Conference} on {Research} {Challenges} in {Information} {Science} ({RCIS})},
	publisher = {IEEE},
	author = {Köppen, Veit and Schäler, Martin and Schröter, Reimar},
	editor = {Deneckère, Rébecca and Bajec, Marko and Collard, Martine},
	year = {2014},
	pages = {452--457},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\QAZWZ47D\\Köppen et al. - 2014 - Toward Variability Management to Tailor High Dimensional Index Implementations.pdf:application/pdf},
}

@article{schaler_queval_2013,
	title = {{QuEval}},
	volume = {6},
	url = {https://doi.org/10.14778%2F2556549.2556551},
	doi = {10.14778/2556549.2556551},
	number = {14},
	journal = {Proceedings of the VLDB Endowment},
	author = {Schäler, Martin and Grebhahn, Alexander and Schröter, Reimar and Schulze, Sandro and Köppen, Veit and Saake, Gunter},
	month = sep,
	year = {2013},
	note = {Publisher: VLDB Endowment},
	pages = {1654--1665},
}

@inproceedings{lodhi_analytical_2013,
	title = {An {Analytical} {Business} {Process} {Modelling} {Language}: {An} {Illustrative} {Example}},
	url = {https://doi.org/10.1109%2Ficebe.2013.23},
	doi = {10.1109/icebe.2013.23},
	booktitle = {2013 {IEEE} 10th {International} {Conference} on e-{Business} {Engineering}},
	publisher = {IEEE},
	author = {Lodhi, Azeem and Köppen, Veit and Wind, Stefan and Saake, Gunter},
	month = sep,
	year = {2013},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\APL7FI2C\\Lodhi et al. - 2013 - An Analytical Business Process Modelling Language An Illustrative Example.pdf:application/pdf},
}

@article{koppen_btw_2013,
	title = {{BTW} 2013 – {Zwischen} wissenschaftlicher {Geschichte} und moderner {Herausforderung}},
	volume = {13},
	url = {https://doi.org/10.1007%2Fs13222-013-0131-0},
	doi = {10.1007/s13222-013-0131-0},
	number = {2},
	journal = {Datenbank-Spektrum},
	author = {Köppen, Veit and Schäler, Martin and Grebhahn, Alexander and Saake, Gunter},
	month = jun,
	year = {2013},
	note = {Publisher: Springer Nature},
	pages = {153--157},
}

@incollection{winsemann_layered_2013,
	title = {A {Layered} {Architecture} {Approach} for {Large}-{Scale} {Data} {Warehouse} {Systems}},
	url = {https://doi.org/10.1007%2F978-3-642-38370-0_20},
	booktitle = {Lecture {Notes} in {Business} {Information} {Processing}},
	publisher = {Springer Berlin Heidelberg},
	author = {Winsemann, Thorsten and Köppen, Veit and Lübcke, Andreas and Saake, Gunter},
	year = {2013},
	doi = {10.1007/978-3-642-38370-0_20},
	pages = {199--201},
}

@inproceedings{gunter_saake_datenbanksysteme_2013,
	title = {Datenbanksysteme für {Business}, {Technologie} und {Web}. {Workshopbd}. {Tagung} vom 11. - 12. {März} 2013 in {Magdeburg}},
	language = {DEUTSCH},
	author = {Gunter Saakeand Andreas Henrich and Wolfgang Lehner and Thomas Neumann and Veit Köppen},
	year = {2013},
	note = {Type: KONFERENZSCHRIFT},
	pages = {1 Online--Ressource (1 CD--ROM)},
}

@inproceedings{volker_markl_datenbanksysteme_2013,
	title = {Datenbanksysteme für {Business}, {Technologie} und {Web}. [{Hauptbd}.]. {Tagung} vom 13. - 15. {März} 2013 in {Magdeburg}},
	language = {DEUTSCH},
	author = {Volker Markl and Gunter Saake and Kai-Uwe Sattler and Gregor Hackenbroich and Bernhard Mitschang and Theo Härder and Veit Köppen},
	year = {2013},
	note = {Type: KONFERENZSCHRIFT},
	pages = {1 Online--Ressource (1 CD--ROM)},
}

@book{saake_datenbanksysteme_2013,
	series = {{LNI}},
	title = {Datenbanksysteme für {Business}, {Technologie} und {Web} ({BTW}), - {Workshopband}, 15. {Fachtagung} des {GI}-{Fachbereichs} "{Datenbanken} und {Informationssysteme}" ({DBIS}), 11.-15.3.2013 in {Magdeburg}, {Germany}. {Proceedings}},
	isbn = {978-3-88579-610-7},
	publisher = {GI},
	author = {Saake, Gunter and Henrich, Andreas and Lehner, Wolfgang and Neumann, Thomas and Köppen, Veit},
	editor = {Saake, Gunter and Henrich, Andreas and Lehner, Wolfgang and Neumann, Thomas and Köppen, Veit},
	year = {2013},
}

@book{markl_datenbanksysteme_2013,
	series = {{LNI}},
	title = {Datenbanksysteme für {Business}, {Technologie} und {Web} ({BTW}), 15. {Fachtagung} des {GI}-{Fachbereichs} "{Datenbanken} und {Informationssysteme}" ({DBIS}), 11.-15.3.2013 in {Magdeburg}, {Germany}. {Proceedings}},
	isbn = {978-3-88579-608-4},
	publisher = {GI},
	author = {Markl, Volker and Saake, Gunter and Sattler, Kai-Uwe and Hackenbroich, Gregor and Mitschang, Bernhard and Härder, Theo and Köppen, Veit},
	editor = {Markl, Volker and Saake, Gunter and Sattler, Kai-Uwe and Hackenbroich, Gregor and Mitschang, Bernhard and Härder, Theo and Köppen, Veit},
	year = {2013},
}

@incollection{lubcke_heuristics-based_2013,
	title = {Heuristics-{Based} {Workload} {Analysis} for {Relational} {DBMSs}},
	url = {https://doi.org/10.1007%2F978-3-642-38370-0_3},
	booktitle = {Lecture {Notes} in {Business} {Information} {Processing}},
	publisher = {Springer Berlin Heidelberg},
	author = {Lübcke, Andreas and Köppen, Veit and Saake, Gunter},
	year = {2013},
	doi = {10.1007/978-3-642-38370-0_3},
	pages = {25--36},
}

@inproceedings{grebhahn_privacy-aware_2013,
	title = {Privacy-{Aware} {Multidimensional} {Indexing}},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/GSK+13.pdf},
	booktitle = {15. {GI}-{Fachtagung} {Datenbanksysteme} für {Business}, {Technologie} und {Web} ({BTW})},
	publisher = {Köllen-Verlag},
	author = {Grebhahn, Alexander and Schäler, Martin and Köppen, Veit and Saake, Gunter},
	year = {2013},
	pages = {133--147},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\P542UFU9\\Grebhahn et al. - 2013 - Privacy-Aware Multidimensional Indexing.pdf:application/pdf},
}

@inproceedings{grebhahn_secure_2013,
	series = {{BTW}-{Workshops}},
	title = {Secure {Deletion}: {Towards} {Tailor}-{Made} {Privacy} in {Database} {Systems}},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/GSK13.pdf},
	booktitle = {Workshop on {Databases} in {Biometrics}, {Forensics} and {Security} {Applications} ({DBforBFS})},
	publisher = {Köllen-Verlag},
	author = {Grebhahn, Alexander and Schäler, Martin and Köppen, Veit},
	year = {2013},
	pages = {99--113},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\PBY3V228\\Grebhahn et al. - 2013 - Secure Deletion Towards Tailor-Made Privacy in Database Systems.pdf:application/pdf},
}

@inproceedings{mory_workshop_2013,
	title = {Workshop on {Information} {Systems} in {Digital} {Engineering} ({ISDE}) – {Message} from the {Chairs}},
	url = {http://www.btw-2013.de/proceedings/ISDE%20%20Message%20from%20the%20Chairs.pdf},
	booktitle = {15. {Fachtagung} des {GI}-{Fachbereichs} „{Datenbanken} und {Informationssysteme}“ ({DBIS}) : {Datenbanksysteme} für {Business}, {Technologie} und {Web} ({BTW}) – {Workshopband}},
	author = {Mory, Maik and Saake, Gunter and Köppen, Veit},
	editor = {Saake, Gunter and Henrich, Andreas and Lehner, Wolfgang and Neumann, Thomas and Köppen, Veit},
	year = {2013},
	pages = {139--140},
}

@inproceedings{winsemann_persistence_2012,
	title = {Persistence in {Data} {Warehousing}},
	url = {https://doi.org/10.1109%2Frcis.2012.6240466},
	doi = {10.1109/rcis.2012.6240466},
	booktitle = {2012 {Sixth} {International} {Conference} on {Research} {Challenges} in {Information} {Science} ({RCIS})},
	publisher = {IEEE},
	author = {Winsemann, Thorsten and Köppen, Veit},
	month = may,
	year = {2012},
}

@incollection{winsemann_layered_2012,
	title = {A {Layered} {Architecture} for {Enterprise} {Data} {Warehouse} {Systems}},
	url = {https://doi.org/10.1007%2F978-3-642-31069-0_17},
	booktitle = {Lecture {Notes} in {Business} {Information} {Processing}},
	publisher = {Springer Berlin Heidelberg},
	author = {Winsemann, Thorsten and Köppen, Veit and Saake, Gunter},
	year = {2012},
	doi = {10.1007/978-3-642-31069-0_17},
	pages = {192--199},
	file = {Full Text PDF:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\PBR6YVSB\\Winsemann et al. - 2012 - A Layered Architecture for Enterprise Data Warehouse Systems.pdf:application/pdf},
}

@inproceedings{grebhahn_challenges_2012,
	title = {Challenges in finding an appropriate multi-dimensional index structure with respect to specific use cases},
	url = {http://ceur-ws.org/Vol-850/paper_grebhahn.pdf},
	booktitle = {Proceedings of the 24th {GI}-{Workshop} "{Grundlagen} von {Datenbanken} 2012"},
	publisher = {CEUR-WS},
	author = {Grebhahn, Alexander and Broneske, David and Schäler, Martin and Schröter, Reimar and Köppen, Veit and Saake, Gunter},
	editor = {Schmitt, Ingo and Saretz, Sascha and Zierenberg, Marcel},
	year = {2012},
	note = {ISSN: 1613-0073},
	pages = {77--82},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\AGU46T29\\Grebhahn et al. - 2012 - Challenges in finding an appropriate multi-dimensional index structure with respect to specific use.pdf:application/pdf},
}

@book{koppen_data_2012,
	edition = {1},
	title = {Data {Warehouse} {Technologien}},
	isbn = {978-3-8266-9161-4},
	url = {http://www.mitp.de/9161},
	publisher = {MITP},
	author = {Köppen, Veit and Saake, Gunter and Sattler, Kai-Uwe},
	month = aug,
	year = {2012},
}

@article{koppen_datenbanken_2012,
	title = {Datenbanken in der {Cloud} - {Transaktionsmanagement} für {Database} as a {Service}},
	volume = {Online-Themenspecial Cloud Computing 2012},
	url = {http://www.sigs.de/publications/os/2012/Cloud/koeppen_gropengiesser_OS_Cloud_12.pdf},
	journal = {OBJEKTspektrum},
	author = {Köppen, Veit and Gropengießer, Francis and Kuhlemann, Martin and Saake, Gunter and Sattler, Kai-Uwe},
	year = {2012},
	pages = {1--4},
}

@inproceedings{frey_exploring_2012,
	series = {{LNI}},
	title = {Exploring {Software} {Variance} with {Hypermodelling} - {An} exemplary approach},
	volume = {P-199},
	isbn = {978-3-88579-292-5},
	url = {http://subs.emis.de/LNI/Proceedings/Proceedings199/121.pdf},
	abstract = {Framework manufacturers face the challenge to determine which parts of frameworks are used and varied. Application developers want to know on which framework elements their application is depending. Currently, programs need to be parsed to extract information about framework usage what consumes time and effort and makes information mining inflexible. Hypermodelling utilizes Data Warehouse technologies for source code investigations to overcome the current limitations. In this paper, we demonstrate that Hypermodelling is suitable to explore software variance. We present reports based on real application data of one project example to reveal multiple facts about the software variance. We show visualizations at different granularity levels. This supports our theory that Hypermodelling can be used to explore software variance in an easy way.},
	booktitle = {Software {Engineering} 2012 {Workshopband}},
	publisher = {Gesellschaft für Informatik (GI)},
	author = {Frey, Tim and Köppen, Veit},
	editor = {Jähnichen, Stefan and Rumpe, Bernhard and Schlingloff, Holger},
	year = {2012},
	pages = {121--136},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\B7KKWTQ3\\Frey und Köppen - 2012 - Exploring Software Variance with Hypermodelling - An exemplary approach.pdf:application/pdf},
}

@inproceedings{mory_exposing_2012,
	series = {{WSCG} {Communication} {Proceedings}},
	title = {Exposing {Proprietary} {Virtual} {Reality} {Software} to {Nontraditional} {Displays}},
	url = {http://wscg.zcu.cz/wscg2012/short/B03-full.pdf},
	abstract = {Nontraditional displays just started their triumph. In contrast to traditional displays, which are plane and rectangular, they do not only differ in design and architecture; they also implicate different semantics and pragmatics in the rendering pipeline. We strive for a generic solution that couples legacy applications with nontraditional displays. In this paper, we present an architecture and a respective experiment, which exposes a proprietary virtual reality software to a 360 degree virtual environment. Therefore we introduce a rigorous master-slave design. The proposed architecture requires discussion of the following details: how to access a proprietary application's OpenGL stream; how to transmit the OpenGL stream efficiently in a clustered rendering setup; how to process the OpenGL stream for adaption to nontraditional display semantics; and how to deal with the arising code complexity, withal. Our design decisions are highly interdependent. The presented architecture overcomes limitations, which were implied by client-server design in earlier work. The proposed rigorous master-slave design is totally transparent to the client software, and reduces interdependencies between rendering software and rendering clusters. Thus, it inherently reduces network round trips and promotes the use of scalable multicast. Our architecture is tested in a reproducible experiment, which provides a qualitative proof of concept.},
	booktitle = {Proceedings of the 20th {International} {Conference} in {Central} {Europe} on {Computer} {Graphics}, {Visualization} and {Computer} {Vision}},
	publisher = {Union Agency},
	author = {Mory, Maik and Masik, Steffen and Müller, Richard and Köppen, Veit},
	year = {2012},
	keywords = {Distributed Rendering, Generative Programming, Interoperability, Multicast, Nontraditional Display, OpenGL},
	pages = {35--43},
}

@inproceedings{frey_hypermodelling_2012,
	title = {Hypermodelling {Live}: {OLAP} for {Code} {Clone} {Recommendation}},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/FK12a.pdf},
	booktitle = {International {Baltic} {Conference} on {Databases} and {Information} {Systems}},
	author = {Frey, Tim and Köppen, Veit},
	year = {2012},
	pages = {37--44},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\WMLV8QPA\\Frey und Köppen - 2012 - Hypermodelling Live OLAP for Code Clone Recommendation.pdf:application/pdf},
}

@incollection{koppen_introduction_2012,
	title = {Introduction to {IWDE} 2012},
	url = {https://doi.org/10.1007%2F978-3-642-33675-1_42},
	booktitle = {Lecture {Notes} in {Computer} {Science}},
	publisher = {Springer Berlin Heidelberg},
	author = {Köppen, Veit and Saake, Gunter},
	year = {2012},
	doi = {10.1007/978-3-642-33675-1_42},
	pages = {449--453},
}

@article{koppen_living_2012,
	title = {Living {SOA}: {Evolution} des {Betriebs} von {SOA}-basierten {Lösungen}},
	url = {http://www.sigs-datacom.de/fachzeitschriften/objektspektrum/archiv/artikelansicht.html?tx_mwjournals_pi1[pointer]=0{\&}tx_mwjournals_pi1[mode]=1{\&}tx_mwjournals_pi1[showUid]=7051},
	number = {1},
	journal = {OBJEKTspektrum},
	author = {Köppen, Veit and Will, Liane},
	month = feb,
	year = {2012},
}

@techreport{winsemann_persistence_2012-1,
	type = {Technical {Reports}},
	title = {Persistence in {Enterprise} {Data} {Warehouses}},
	url = {http://www2.cs.uni-magdeburg.de/inf_media/downloads/forschung/technical_reports_und_preprints/2012/02_2012.pdf},
	abstract = {Yet, persistence of redundant data in Data Warehouses is often simply justified with an achievement of better performance when accessing data for analysis and reporting. Especially in Enterprise Data Warehouse systems, data management via multiple persistence levels is necessary to condition the huge amount of data into an adequate format for its final usage. However, there are further reasons to store data persistently, which are often not recognized when designing such warehouses. As processing and maintenance of data is complex and requires huge effort, less redundancy will downsize effort. Latest in-memory technologies enable good response times for data access, so that the question arises, what data for what purposes really need to be stored persistently - and how can this be efficiently decided. We present a compendium of purposes for data persistence and use it as a basis for decisionmaking whether to store data or not. As an outlook, we expand this discussion on Enterprise Data Warehouses based on in-memory databases.},
	number = {2-2012},
	institution = {Otto-von-Guericke University Magdeburg},
	author = {Winsemann, Thorsten and Köppen, Veit},
	month = mar,
	year = {2012},
	note = {ISSN: 1869-5078},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\HNCWM2MT\\Winsemann und Köppen - 2012 - Persistence in Enterprise Data Warehouses.pdf:application/pdf},
}

@article{keller_sicherheit_2012,
	title = {Sicherheit in der {Fahrzeugtechnik}: {Software} in eingebetteten {Systemen}},
	url = {http://www.sigs-datacom.de/fileadmin/user_upload/zeitschriften/os/2012/06/keller_koeppen_OS_06_12_49tr.pdf},
	number = {6},
	journal = {ObjektSpektrum},
	author = {Keller, Patric and Köppen, Veit and Liggesmeyer, Peter},
	month = dec,
	year = {2012},
	pages = {78--83},
}

@article{feigenspan_supporting_2012,
	title = {Supporting {Program} {Comprehension} in {Large} {Preprocessor}-{Based} {Software} {Product} {Lines}},
	volume = {6},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/FeScPa+12.pdf},
	number = {6},
	journal = {IET Software},
	author = {Feigenspan, Janet and Schulze, Michael and Papendieck, Maria and Kästner, Christian and Dachselt, Raimund and Köppen, Veit and Frisch, Mathias and Saake, Gunter},
	year = {2012},
	pages = {488--501},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\3VM5DMFQ\\Feigenspan et al. - 2012 - Supporting Program Comprehension in Large Preprocessor-Based Software Product Lines.pdf:application/pdf},
}

@techreport{schaler_techniken_2012,
	address = {Germany},
	type = {Collection},
	title = {Techniken zur forensischen {Datenhaltung} - {Ausgewählte} studentische {Beiträge}},
	url = {http://www.cs.uni-magdeburg.de/inf_media/downloads/forschung/technical_reports_und_preprints/2012/05_2012.pdf},
	number = {FIN-05-2012},
	institution = {University of Magdeburg},
	author = {Schäler, Martin and Schulze, Sandro and Grebhahn, Alexander and Köppen, Veit and Lübcke, Andreas and Saake (Hrsg.), Gunter},
	month = oct,
	year = {2012},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\7PNZEAP5\\Schäler et al. - 2012 - Techniken zur forensischen Datenhaltung - Ausgewählte studentische Beiträge.pdf:application/pdf},
}

@inproceedings{kruger_towards_2012,
	title = {Towards {Tool} {Support} for {Computational} {Causal} {Behavior} {Models} for {Activity} {Recognition}},
	volume = {208},
	isbn = {978-3-88579-602-2},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/KYK+12.pdf},
	abstract = {Complexity in Modeling and Development increases continuously. Subject of this paper is to show how developers of Computational Causal Behavior Models can be supported with a tool to improve the development process. Therefore, we analyze three case studies about probabilistic modeling of human behavior for activity recognition with respect to specific problems that might occur. We present a classification into five problem types that should be carefully considered in such projects. Finally, we present how tool support to increase the efficiency of developing Computational Causal Behavior Models might be created. In general, the paper provides useful guidelines for every model developer in the field of activity recognition, and highlights the need of tool support for such models.},
	booktitle = {Informatik 2012},
	publisher = {GI},
	author = {Krüger, Frank and Yordanova, Kristina and Köppen, Veit and Kirste, Thomas},
	editor = {Goltz, Ursula and Magnor, Marcus and Appelrath, Hans-Jürgen and Matthies, Herbert and Balke, Wolf-Tilo and Wolf, Lars},
	year = {2012},
	pages = {561--572},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\734GH767\\Krüger et al. - 2012 - Towards Tool Support for Computational Causal Behavior Models for Activity Recognition.pdf:application/pdf},
}

@inproceedings{lubcke_workload-based_2012,
	address = {Vilnius, Lithuania},
	title = {Workload-based {Heuristics} for {Evaluation} of {Physical} {Database} {Architectures}},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/LuScKoSa2012DBIS.pdf},
	booktitle = {{DB}\&{IS}},
	publisher = {University of Vilnius},
	author = {Lübcke, Andreas and Schäler, Martin and Köppen, Veit and Saake, Gunter},
	month = jul,
	year = {2012},
	pages = {3--10},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\2U6E8ICB\\Lübcke et al. - 2012 - Workload-based Heuristics for Evaluation of Physical Database Architectures.pdf:application/pdf},
}

@inproceedings{will_zentrales_2012,
	series = {{LNI}},
	title = {Zentrales, standardisiertes {Monitoring} als {Grundlage} des {Service} {Level} {Managements} in flexiblen {SOA}-{Lösungen}},
	volume = {208},
	isbn = {978-3-88579-602-2},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/WK12b.pdf},
	abstract = {Wenn das Potential der Flexibilität von SOA auf Basis der Änderbarkeit von Services erhalten und genutzt werden soll, ergeben sich besondere Herausforderungen beim Betrieb von SOA-basierten Lösungen. Dies wird am Beispiel des Service Level Management (SLM) und dem zur Überwachung und Auswertung erforderlichen Monitoring von Antwortzeiten demonstriert. Es wird gezeigt, dass dies eine Erweiterung der zentralen Bestandteile von SOA um ein zentrales Werkzeug für Monitoring und Reporting erforderlich macht. Ein solches Werkzeug muss unabhängig von den eingesetzten Services und z.B deren Technologie arbeiten, um beim Austausch von Services davon unbeeinträchtigt zu bleiben. Voraussetzung dafür ist die Standardisierung der zu überwachenden Kennzahlen und deren Messung. Einerseits kann dies unter Nutzung der bereits vorhandenen zentralen Bestandteile zentralen Services Service Bus und Service Repository erfolgen, andere erfordern zusätzliche nicht-funktionale Eigenschaften von Services.},
	booktitle = {Informatik 2012},
	publisher = {GI},
	author = {Will, Liane and Köppen, Veit},
	editor = {Goltz, Ursula and Magnor, Marcus and Appelrath, Hans-Jürgen and Matthies, Herbert and Balke, Wolf-Tilo and Wolf, Lars},
	year = {2012},
	pages = {759--773},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\YFIXY998\\Will und Köppen - 2012 - Zentrales, standardisiertes Monitoring als Grundlage des Service Level Managements in flexiblen SOA-.pdf:application/pdf},
}

@inproceedings{lodhi_business_2011,
	title = {Business process modeling for post execution analysis and improvement},
	url = {https://doi.org/10.1109%2Fskima.2011.6089982},
	doi = {10.1109/skima.2011.6089982},
	booktitle = {2011 5th {International} {Conference} on {Software}, {Knowledge} {Information}, {Industrial} {Management} and {Applications} ({SKIMA}) {Proceedings}},
	publisher = {IEEE},
	author = {Lodhi, A. and Köppen, Veit},
	month = sep,
	year = {2011},
	file = {Eingereichte Version:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\XLERC5D8\\Lodhi und Köppen - 2011 - Business process modeling for post execution analysis and improvement.pdf:application/pdf},
}

@inproceedings{lubcke_decision_2011,
	title = {A decision model to select the optimal storage architecture for relational databases},
	url = {https://doi.org/10.1109%2Frcis.2011.6006854},
	doi = {10.1109/rcis.2011.6006854},
	booktitle = {2011 {FIFTH} {INTERNATIONAL} {CONFERENCE} {ON} {RESEARCH} {CHALLENGES} {IN} {INFORMATION} {SCIENCE}},
	publisher = {IEEE},
	author = {Lubcke, Andreas and Koppen, Veit and Saake, Gunter},
	month = may,
	year = {2011},
}

@techreport{khan_service_2011,
	address = {Germany},
	title = {Service {Variability} {Patterns} in {SOC}},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/KKKS11.pdf},
	number = {5},
	institution = {University of Magdeburg},
	author = {Khan, Ateeq and Kästner, Christian and Köppen, Veit and Saake, Gunter},
	month = may,
	year = {2011},
	keywords = {patterns, SOC, variability},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\7QZEYWX3\\Khan et al. - 2011 - Service Variability Patterns in SOC.pdf:application/pdf},
}

@techreport{lubcke_query_2011,
	address = {Germany},
	title = {A {Query} {Decomposition} {Approach} for {Relational} {DBMS} using {Different} {Storage} {Architectures}},
	url = {http://www.cs.uni-magdeburg.de/inf_media/downloads/forschung/technical_reports_und_preprints/2011/TechReport11-p-3818.pdf},
	number = {11},
	institution = {University of Magdeburg},
	author = {Lübcke, Andreas and Köppen, Veit and Saake, Gunter},
	month = dec,
	year = {2011},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\WZKGDGU5\\Lübcke et al. - 2011 - A Query Decomposition Approach for Relational DBMS using Different Storage Architectures.pdf:application/pdf},
}

@inproceedings{winsemann_advantages_2011,
	title = {Advantages of a {Layered} {Architecture} for {Enterprise} {Data} {Warehouse} {Systems}},
	url = {http://www.csdm2011.csdm.fr/-Posters,138-.html},
	abstract = {In literature, the architecture of Data Warehouse systems is still described on basis of so-called reference architectures. Requirements to today’s Enterprise Data Warehouses are often too complex to be satisfactorily achieved by these rather rough descriptions. We introduce an architecture of dedicated layers to face those actual requirements, and point out additional expenses and resulting advantages of this generic approach compared to the traditional one. Moreover, we exemplify that especially layered architectures cope with existing complexity of such warehouses.},
	booktitle = {Procceding of {Complex} {Systems} {Design} \& {Management} ({CSD}\&{M})},
	author = {Winsemann, Thorsten and Köppen, Veit and Saake, Gunter},
	year = {2011},
}

@article{lodhi_extension_2011,
	title = {An {Extension} of {BPMN} {Meta}-model for {Evaluation} of {Business} {Processes}},
	volume = {46},
	issn = {1407-7493},
	url = {https://ortus.rtu.lv/science/en/publications/10971/fulltext},
	journal = {Scientific Journal of Riga Technical University. Computer Science},
	author = {Lodhi, Azeem and Köppen, Veit and Saake, Gunter},
	year = {2011},
	pages = {27--34},
}

@inproceedings{lodhi_business_2011-1,
	address = {Prague, Czech Republic},
	series = {Advances in {Intelligent} {Systems} and {Computing}},
	title = {Business {Process} {Improvement} {Framework} and {Representational} {Support}},
	volume = {179},
	isbn = {978-3-642-31602-9},
	url = {http://www.springerlink.com/content/j663654m466kg18j/fulltext.pdf},
	booktitle = {Proceedings of {The} {Third} {International} {Conference} on {Intelligent} {Human} {Computer} {Interaction} ({IHCI})},
	publisher = {Springer},
	author = {Lodhi, Azeem and Köppen, Veit and Saake, Gunter},
	editor = {Kudělka, Miloš and Pokorný, Jaroslav and Snášel, Václav and Abraham, Ajith},
	month = aug,
	year = {2011},
	pages = {155--167},
}

@techreport{lodhi_business_2011-2,
	address = {Magdeburg, Germany},
	title = {Business {Process} {Modeling}: {Active} {Research} {Areas} and {Challenges}},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/AzVkGsTR1002.pdf},
	number = {1},
	institution = {Faculty of Computer Science, University of Magdeburg},
	author = {Lodhi, Azeem and Köppen, Veit and Saake, Gunter},
	year = {2011},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\P5Y6EDHV\\Lodhi et al. - 2011 - Business Process Modeling Active Research Areas and Challenges.pdf:application/pdf},
}

@inproceedings{koppen_business-management-inspired_2011,
	title = {Business-management-inspired sensor data fusion},
	url = {https://doi.org/10.1145%2F2185216.2185271},
	doi = {10.1145/2185216.2185271},
	booktitle = {Proceedings of the 1st {International} {Conference} on {Wireless} {Technologies} for {Humanitarian} {Relief} - {ACWR} '11},
	publisher = {ACM Press},
	author = {Köppen, Veit and Mory, Maik and Dietrich, André and Zug, Sebastian},
	year = {2011},
}

@inproceedings{koppen_challenges_2011,
	series = {{KDML} {Workshop} on {Knowledge} {Discovery}, {Data} {Mining} and {Machine} {Learning}},
	title = {Challenges in an {Assistance} {World}},
	url = {http://141.44.30.131/kdml-submissions.zip},
	booktitle = {{LWA} 2011: {Lernen}, {Wissen} \& {Adaptivität}, {Workshop} {Proceedings}},
	publisher = {Faculty of Computer Science, Otto-von-Guericke-University},
	author = {Köppen, Veit and Kirste, Thomas and Saake, Gunter},
	year = {2011},
	note = {Place: Magdeburg, Germany},
}

@inproceedings{vornholt_datenmodell_2011,
	address = {Magdeburg},
	title = {Datenmodell zur flexiblen {Verwaltung} von {Datenaustauschprozessen} in der virtuellen {Produktentwicklung}},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/VStGKSa2011.pdf},
	booktitle = {10. {Magdeburger} {Maschinenbau}-{Tage} 27.-29.09.2011},
	publisher = {Otto-von-Guericke-Universität Magdeburg},
	author = {Vornholt, Stephan and Stoye, Michael and Geist, Ingolf and Köppen, Veit and Saake, Gunter},
	editor = {u.a, Roland Kasper},
	month = sep,
	year = {2011},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\FIMCWTKF\\Vornholt et al. - 2011 - Datenmodell zur flexiblen Verwaltung von Datenaustauschprozessen in der virtuellen Produktentwicklun.pdf:application/pdf},
}

@article{koppen_designing_2011,
	title = {Designing {Data} {Integration}: {The} {ETL} {Pattern} {Approach}},
	volume = {13},
	url = {http://www.cepis.org/upgrade/media/III_2011_koeppen1.pdf},
	number = {3},
	journal = {Cepis Upgrade},
	author = {Köppen, Veit and Brüggemann, Björn and Berendt, Bettina},
	month = jul,
	year = {2011},
	pages = {49--55},
}

@inproceedings{mory_evaluation_2011,
	address = {Magdeburg, Germany},
	title = {Evaluation of {Techniques} for the {Instrumentation} and {Extension} of {Proprietary} {OpenGL} {Applications}},
	url = {http://vierfores1.cs.uni-magdeburg.de/iwde-2011/files/pdf/iwde2011_Mory.pdf},
	abstract = {Instrumentation of interfaces is a popular design pattern in engineering. Academic and industrial projects are already using instrumented OpenGL clients for various purposes. We perceive instrumentation of proprietary OpenGL applications as a basic technology to open up interactive three-dimensional graphics as a potent interoperability platform for heterogeneous simulation software in engineering. Hence, we describe and compare four instrumentation techniques on the MS Windows platform: relink library, dynamic library replacement, virtual display driver, and binary interception. We qualitatively evaluate them for four capabilities: to instrument proprietary simulation software; to instrument a subset only of the OpenGL interface; to instrument multiple interfaces simultaneously; and to chain intermediaries. The relink library technique is powerful, except that it cannot be used with proprietary simulation software. Dynamic library replacement and virtual display drivers potentially support all features, although some features are difficult to implement. The binary interception technique inherently supports all capabilities. We conclude with directions for future research.},
	booktitle = {2nd {International} {ACM}/{GI} {Workshop} on {Digital} {Engineering} ({IWDE})},
	author = {Mory, Maik and Pukall, Mario and Köppen, Veit and Saake, Gunter},
	year = {2011},
	pages = {50--57},
}

@inproceedings{koppen_ganzheitliche_2011,
	address = {Magdeburg},
	title = {Ganzheitliche {Unterstützung} für die simultane und virtuelle {Produktentwicklung}},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/KVGSa2011.pdf},
	booktitle = {10. {Magdeburger} {Maschinenbau}-{Tage} 27.-29.09.2011},
	publisher = {Otto-von-Guericke-Universität Magdeburg},
	author = {Köppen, Veit and Vornholt, Stephan and Geist, Ingolf and Saake, Gunter},
	editor = {u.a, Roland Kasper},
	month = sep,
	year = {2011},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\ZAXGAGL2\\Köppen et al. - 2011 - Ganzheitliche Unterstützung für die simultane und virtuelle Produktentwicklung.pdf:application/pdf},
}

@inproceedings{frey_hypermodelling_2011,
	address = {Magdeburg, Germany},
	title = {Hypermodelling - {Introducing} {Multi}-dimensional {Concern} {Reverse} {Engineering}},
	url = {http://vierfores1.cs.uni-magdeburg.de/iwde-2011/files/pdf/iwde2011_Frey.pdf},
	booktitle = {2nd {International} {ACM}/{GI} {Workshop} on {Digital} {Engineering} ({IWDE})},
	author = {Frey, Tim and Köppen, Veit and Saake, Gunter},
	year = {2011},
	pages = {58--66},
}

@inproceedings{winsemann_kriterien_2011,
	address = {Obergurgl, Austria},
	title = {Kriterien für {Datenpersistenz} bei {Enterprise} {Data} {Warehouse} {Systemen} auf {In}-{Memory} {Datenbanken}},
	url = {http://ceur-ws.org/Vol-733/paper_winsemann.pdf},
	booktitle = {Proceedings of the 23. {GI}-{Workshop} on {Foundations} of {Databases}},
	author = {Winsemann, Thorsten and Köppen, Veit},
	month = jun,
	year = {2011},
	note = {ISSN: 1613-0073},
	pages = {97--102},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\7GKC3RPB\\Winsemann und Köppen - 2011 - Kriterien für Datenpersistenz bei Enterprise Data Warehouse Systemen auf In-Memory Datenbanken.pdf:application/pdf},
}

@inproceedings{frey_role_2011,
	title = {On the role of human thought},
	url = {https://doi.org/10.1145%2F2089172.2089174},
	doi = {10.1145/2089172.2089174},
	booktitle = {Proceedings of the 2nd workshop on {Free} composition (at) onward! 2011 - {FREECO}-{Onward}! '11},
	publisher = {ACM Press},
	author = {Frey, Tim and Gelhausen, Marius and Sorgatz, Hardo and Köppen, Veit},
	year = {2011},
}

@book{koppen_proceedings_2011,
	address = {Magdeburg, Germany},
	title = {Proceedings of the {Second} {International} {Workshop} on {Digital} {Engineering}},
	url = {http://www.cs.uni-magdeburg.de/inf_media/downloads/forschung/technical_reports_und_preprints/2011/TechReport10-p-3776.pdf},
	publisher = {Faculty of Computer Science, Otto-von-Guericke-University},
	author = {Köppen, Veit and Saake, Gunter},
	editor = {Köppen, Veit and Saake, Gunter},
	month = nov,
	year = {2011},
	note = {ISSN: 1869-5078},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\2YM3KHV8\\Köppen und Saake - 2011 - Proceedings of the Second International Workshop on Digital Engineering.pdf:application/pdf},
}

@incollection{khan_service_2011-1,
	title = {Service {Variability} {Patterns}},
	url = {https://doi.org/10.1007%2F978-3-642-24574-9_18},
	booktitle = {Advances in {Conceptual} {Modeling}. {Recent} {Developments} and {New} {Directions}},
	publisher = {Springer Berlin Heidelberg},
	author = {Khan, Ateeq and Kästner, Christian and Köppen, Veit and Saake, Gunter},
	year = {2011},
	doi = {10.1007/978-3-642-24574-9_18},
	pages = {130--140},
}

@inproceedings{khan_pervasive_2011,
	title = {The {Pervasive} {Nature} of {Variability} in {SOC}},
	url = {https://doi.org/10.1109%2Ffit.2011.20},
	doi = {10.1109/fit.2011.20},
	booktitle = {2011 {Frontiers} of {Information} {Technology}},
	publisher = {IEEE},
	author = {Khan, Ateeq and Kästner, Christian and Köppen, Veit and Saake, Gunter},
	month = dec,
	year = {2011},
	file = {Eingereichte Version:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\2ZMHRP2M\\Khan et al. - 2011 - The Pervasive Nature of Variability in SOC.pdf:application/pdf},
}

@inproceedings{feigenspan_using_2011,
	title = {Using {Background} {Colors} to {Support} {Program} {Comprehension} in {Software} {Product} {Lines}},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/FSP+10.pdf},
	booktitle = {International {Conference} on {Evaluation} and {Assessment} in {Software} {Engineering} ({EASE})},
	publisher = {Institution of Engineering and Technology},
	author = {Feigenspan, Janet and Schulze, Michael and Papendieck, Maria and Kästner, Christian and Dachselt, Raimund and Köppen, Veit and Frisch, Mathias},
	year = {2011},
	pages = {66--75},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\BSMT9NLL\\Feigenspan et al. - 2011 - Using Background Colors to Support Program Comprehension in Software Product Lines.pdf:application/pdf},
}

@inproceedings{lubcke_workload_2011,
	address = {Obergurgl, Austria},
	title = {Workload {Representation} across {Different} {Storage} {Architectures} for {Relational} {DBMS}},
	url = {http://ceur-ws.org/Vol-733/paper_luebcke.pdf},
	booktitle = {Proceedings of the 23. {GI}-{Workshop} on {Foundations} of {Databases}},
	publisher = {Universtiy of Innsbruck},
	author = {Lübcke, Andreas and Köppen, Veit and Saake, Gunter},
	month = jun,
	year = {2011},
	note = {ISSN: 1613-0073},
	pages = {79--84},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\388W3IUH\\Lübcke et al. - 2011 - Workload Representation across Different Storage Architectures for Relational DBMS.pdf:application/pdf},
}

@incollection{khan_applying_2010,
	title = {Applying {Process} {Mining} in {SOA} {Environments}},
	url = {https://doi.org/10.1007%2F978-3-642-16132-2_28},
	booktitle = {Service-{Oriented} {Computing}. {ICSOC}/{ServiceWave} 2009 {Workshops}},
	publisher = {Springer Berlin Heidelberg},
	author = {Khan, Ateeq and Lodhi, Azeem and Köppen, Veit and Kassem, Gamal and Saake, Gunter},
	year = {2010},
	doi = {10.1007/978-3-642-16132-2_28},
	pages = {293--302},
	file = {Full Text PDF:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\ENQGM9XP\\Khan et al. - 2010 - Applying Process Mining in SOA Environments.pdf:application/pdf},
}

@inproceedings{lodhi_building_2010,
	title = {Building {AS}-{IS} process models from task descriptions},
	url = {https://doi.org/10.1145%2F1943628.1943642},
	doi = {10.1145/1943628.1943642},
	booktitle = {Proceedings of the 8th {International} {Conference} on {Frontiers} of {Information} {Technology} - {FIT} '10},
	publisher = {ACM Press},
	author = {Lodhi, Azeem and Kassem, Gamal and Köppen, Veit and Saake, Gunter},
	year = {2010},
}

@article{rahman_cellular_2010,
	title = {Cellular {DBMS}: {An} {Atempt} {Towards} {Biologocally}-{Inspired} {Data} {Management}},
	volume = {8},
	issn = {09727272},
	url = {http://www.dline.info/fpaper/jdim/v8i2/3.pdf},
	abstract = {Existing database management systems (DBMS) are complex and less predictable (i.e., the consistency of performance with the increase of functionality and the data growth is not certain). Database researchers acknowledge the need for revisiting DBMS architectures to fulfill the needs of new hardware and application trends. We propose a biologically inspired DBMS architecture called ”Cellular DBMS". The Cellular DBMS architecture promises development of highly customizable and autonomous DBMS. This paper explains in detail the design principles for Cellular DBMS architecture. It also explains an aspect-oriented programming based model to equip Cellular DBMS architecture with autonomy. Finally, it presents an extension to decomposed storage model (DSM) for use in Cellular DBMS.},
	number = {2},
	journal = {Journal of Digital Information Management},
	author = {Rahman, Syed Saif ur and Köppen, Veit and Saake, Gunter},
	month = apr,
	year = {2010},
	pages = {117--128},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\CW7L9S5X\\Rahman et al. - 2010 - Cellular DBMS An Atempt Towards Biologocally-Inspired Data Management.pdf:application/pdf},
}

@inproceedings{siegmund_challenges_2010,
	title = {Challenges of secure and reliable data management in heterogeneous environments},
	url = {https://doi.org/10.1145%2F1837154.1837157},
	doi = {10.1145/1837154.1837157},
	booktitle = {Proceedings of the {First} {International} {Workshop} on {Digital} {Engineering} - {IWDE} '10},
	publisher = {ACM Press},
	author = {Siegmund, Norbert and Feigenspan, Janet and Soffner, Michael and Fruth, Jana and Köppen, Veit},
	year = {2010},
	file = {Eingereichte Version:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\WRB3UDNG\\Siegmund et al. - 2010 - Challenges of secure and reliable data management in heterogeneous environments.pdf:application/pdf},
}

@incollection{algergawy_combining_2010,
	title = {Combining {Schema} and {Level}-{Based} {Matching} for {Web} {Service} {Discovery}},
	url = {https://doi.org/10.1007%2F978-3-642-13911-6_8},
	booktitle = {Lecture {Notes} in {Computer} {Science}},
	publisher = {Springer Berlin Heidelberg},
	author = {Algergawy, Alsayed and Nayak, Richi and Siegmund, Norbert and Köppen, Veit and Saake, Gunter},
	year = {2010},
	doi = {10.1007/978-3-642-13911-6_8},
	pages = {114--128},
	file = {Full Text PDF:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\IBBX6J2D\\Algergawy et al. - 2010 - Combining Schema and Level-Based Matching for Web Service Discovery.pdf:application/pdf},
}

@incollection{koppen_data_2010,
	title = {Data {Quality} {Control} {Based} on {Metric} {Data} {Models}},
	url = {https://doi.org/10.1007%2F978-3-7908-2380-6_17},
	booktitle = {Frontiers in {Statistical} {Quality} {Control} 9},
	publisher = {Physica-Verlag HD},
	author = {Köppen, Veit and Lenz, Hans-J.},
	year = {2010},
	doi = {10.1007/978-3-7908-2380-6_17},
	pages = {263--276},
	file = {Eingereichte Version:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\C754UGWS\\Köppen und Lenz - 2010 - Data Quality Control Based on Metric Data Models.pdf:application/pdf},
}

@inproceedings{vornholt_data-driven_2010,
	title = {Data-driven and {Integrated} {Engineering} for {Virtual} {Prototypes}},
	booktitle = {The 3rd {International} {Multi}-{Conference} on {Engineering} and {Technological} {Innovation}: {IMETI} 2010},
	author = {Vornholt, Stephan and Köppen, Veit},
	year = {2010},
	pages = {164--168},
}

@article{koppen_einsatz_2010,
	title = {Einsatz von {Virtueller} {Realität} im {Prozessmanagement}},
	volume = {26},
	number = {2},
	journal = {Industrie Management},
	author = {Köppen, Veit and Saake, Gunter},
	year = {2010},
	pages = {49--53},
}

@techreport{koppen_grundlagen_2010,
	address = {Germany},
	title = {Grundlagen und {Einsatz} von {Jini} für serviceorientierte {Architekturen}},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/KMS+10.pdf},
	number = {10},
	institution = {University of Magdeburg},
	author = {Köppen, Veit and Meier, Andreas and Soffner, Michael and Siegmund, Norbert},
	year = {2010},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\SS2GZRW9\\Köppen et al. - 2010 - Grundlagen und Einsatz von Jini für serviceorientierte Architekturen.pdf:application/pdf},
}

@book{koppen_iwde_2010,
	address = {New York, NY, USA},
	title = {{IWDE} '10: {Proceedings} of the {First} {International} {Workshop} on {Digital} {Engineering}},
	isbn = {978-1-60558-992-3},
	url = {http://portal.acm.org/toc.cfm?id=1837154{\&}idx=SERIES10714{\&}type=proceeding{\&}coll=ACM{\&}dl=ACM{\&}part=series{\&}WantType=Journals{\&}title=Proceedings%20of%20the%20First%20International%20Workshop%20on%20Digital%20Engineering{\&}CFID=98941080{\&}CFTOKEN=78531018},
	abstract = {Digital Engineering is an emerging research area uniting classical engineering and software engineering. This combined view is necessary because of growing complexity of products and processes. Although in the domain of classical engineering and software engineering many methodologies exist only a holistic approach is sufficiently targeting. Besides domain specific research interests, at the interface between both research areas, new challenges arise. These stimulating challenges offer an interesting potential for academic and industrial researchers. Digital Engineering is a young interdisciplinary domain to develop and improve products and processes in a holistic manner. A reduction of frictional losses between different involved partners, e.g., from classical and software engineering, includes consideration of system discontinuity, tool discontinuity, and domain discontinuity. For efficiency purposes, involved people, organization structures, and technics have to be considered carefully. Digital Engineering enables shortened development cycles, observation of quality requirements, and a reduction of cost. Therefore, Digital Engineering can be seen as computer-aided design, innovation, and optimization at the same time. The use of virtual and augmented reality is a main driver in this context due to the possibilities of controlling complexity of data, models, knowledge, methods, and tools.},
	publisher = {ACM},
	author = {Köppen, Veit and Saake, Gunter},
	editor = {Köppen, Veit and Saake, Gunter},
	month = jun,
	year = {2010},
}

@incollection{berendt_improving_2010,
	title = {Improving {Ranking} by {Respecting} the {Multidimensionality} and {Uncertainty} of {User} {Preferences}},
	url = {https://doi.org/10.1007%2F978-3-642-14000-6_3},
	booktitle = {Intelligent {Information} {Access}},
	publisher = {Springer Berlin Heidelberg},
	author = {Berendt, Bettina and Köppen, Veit},
	year = {2010},
	doi = {10.1007/978-3-642-14000-6_3},
	pages = {39--56},
	file = {Akzeptierte Version:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\I68XF3AA\\Berendt und Köppen - 2010 - Improving Ranking by Respecting the Multidimensionality and Uncertainty of User Preferences.pdf:application/pdf},
}

@inproceedings{lodhi_investigation_2010,
	address = {Lahore, Pakistan},
	title = {Investigation of {Graph} {Mining} for {Business} {Processes}},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/AzGkVkGs10graph.pdf},
	booktitle = {Proceedings of {The} {International} {Conference} on {Intelligence} and {Information} {Technology} ({ICIIT})},
	author = {Lodhi, Azeem and Kassem, Gamal and Köppen, Veit and Saake, Gunter},
	year = {2010},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\TGKSVMDA\\Lodhi et al. - 2010 - Investigation of Graph Mining for Business Processes.pdf:application/pdf},
}

@techreport{lodhi_post_2010,
	address = {Magdeburg, Germany},
	title = {Post {Execution} {Analysis} of {Business} {Processes}: {Taxonomy} and {Challenges}},
	url = {http://wwwiti.cs.uni-magdeburg.de/iti_db/publikationen/ps/auto/AzVkGsTR1001.pdf},
	number = {9},
	institution = {Faculty of Computer Science, University of Magdeburg},
	author = {Lodhi, Azeem and Köppen, Veit and Saake, Gunter},
	year = {2010},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\TKXLMKPI\\Lodhi et al. - 2010 - Post Execution Analysis of Business Processes Taxonomy and Challenges.pdf:application/pdf},
}

@techreport{lubcke_towards_2010,
	address = {Germany},
	title = {Towards {Selection} of {Optimal} {Storage} {Architecture} for {Relational} {Databases}},
	url = {http://www.cs.uni-magdeburg.de/inf_media/downloads/forschung/technical_reports_und_preprints/2010/TechReport11-p-3820.pdf},
	number = {11},
	institution = {University of Magdeburg},
	author = {Lübcke, Andreas and Köppen, Veit and Saake, Gunter},
	month = dec,
	year = {2010},
	file = {Volltext:C\:\\Datenhalde\\Nextcloud-FHP\\ZoteroData\\profile\\storage\\KKUL66YQ\\Lübcke et al. - 2010 - Towards Selection of Optimal Storage Architecture for Relational Databases.pdf:application/pdf},
}

@article{koppen_architecture_2009,
	title = {An {Architecture} for {Interoperability} of {Embedded} {Systems} and {Virtual} {Reality}},
	volume = {26},
	url = {https://doi.org/10.4103%2F0256-4602.55278},
	doi = {10.4103/0256-4602.55278},
	number = {5},
	journal = {IETE Technical Review},
	author = {Köppen, Veit and Siegmund, Norbert and Soffner, Michael and Saake, Gunter},
	year = {2009},
	note = {Publisher: Medknow},
	pages = {350},
}

@inproceedings{siegmund_using_2009,
	title = {Using software product lines for runtime interoperability},
	url = {https://doi.org/10.1145%2F1562860.1562864},
	doi = {10.1145/1562860.1562864},
	booktitle = {Proceedings of the {Workshop} on {AOP} and {Meta}-{Data} for {Software} {Evolution} - {RAM}-{SE} '09},
	publisher = {ACM Press},
	author = {Siegmund, Norbert and Pukall, Mario and Soffner, Michael and Köppen, Veit and Saake, Gunter},
	year = {2009},
}

@inproceedings{koppen_procedure_2008,
	title = {A {Procedure} to {Estimate} {Relations} in a {Balanced} {Scorecard}},
	url = {https://doi.org/10.1007%2F978-3-540-78246-9_43},
	booktitle = {Data {Analysis}, {Machine} {Learning} and {Applications}},
	publisher = {Springer Berlin Heidelberg},
	author = {Köppen, Veit and Graubitz, Henner and Arndt, Hans-K. and Lenz, Hans-J.},
	year = {2008},
	doi = {10.1007/978-3-540-78246-9_43},
	pages = {363--371},
}

@phdthesis{koppen_improving_2008,
	type = {{HOCHSCHULSCHRIFT}},
	title = {Improving the quality of indicator systems by {MoSi}. methodology and evaluation},
	language = {ENGLISCH},
	author = {Köppen, Veit},
	year = {2008},
}

@book{koppen_business_2007,
	address = {Hamburg},
	series = {Schriftenreihe {Studien} zur {Wirtschaftsinformatik}},
	title = {Business intelligence: methods and applications. essays in honor of {Prof}. {Dr}. {Hans}-{J}. {Lenz}},
	isbn = {3-8300-3141-6},
	language = {ENGLISCH},
	number = {Bd. 23},
	publisher = {Kovač},
	author = {Köppen, Veit and Müller, Roland M.},
	year = {2007},
	keywords = {Business Intelligence},
}

@incollection{gernert_geschaftsprozesse_2006,
	address = {Berlin Heidelberg},
	title = {Geschäftsprozesse optimal gestalten},
	url = {https://doi.org/10.1007%2F3-540-46272-4_9},
	booktitle = {Handbuch {IT} in der {Verwaltung}},
	publisher = {Springer},
	author = {Gernert, Christiane and Köppen, Veit},
	year = {2006},
	doi = {10.1007/3-540-46272-4_9},
	pages = {195--223},
}

@incollection{koppen_relational_2014,
	title = {Relational {Data} {Access} for {Business} {Data} {Analytics}},
	url = {https://doi.org/10.4018%2F978-1-4666-5202-6.ch182},
	booktitle = {Encyclopedia of {Business} {Analytics} and {Optimization}},
	publisher = {IGI Global},
	author = {Köppen, Veit and Lübcke, Andreas},
	year = {2014},
	doi = {10.4018/978-1-4666-5202-6.ch182},
	pages = {2020--2027},
}

@incollection{gernert_vorgehensmodelle_2008,
	address = {Berlin Heidelberg},
	title = {Vorgehensmodelle ür {Systementwicklung} und {Business} {Engineering}},
	url = {https://doi.org/10.1007%2F978-3-540-30250-6_4},
	booktitle = {Das {V}-{Modell} {XT}},
	publisher = {Springer},
	author = {Gernert, Christiane and Köppen, Veit and Höhn, Reinhard and Kiehne, Oliver and Mohana-Radhakrishnan, Balaij and Turk, Wolfgang},
	year = {2008},
	doi = {10.1007/978-3-540-30250-6_4},
	pages = {275--405},
}

@inproceedings{kralisch_impact_2005,
	title = {The {Impact} of {Language} on {Website} {Use} and {User} {Satisfaction}: {Project} {Description}},
	booktitle = {{ECIS}},
	author = {Kralisch, Anett and Köppen, Veit},
	year = {2005},
}

@incollection{koppen_business_2007-1,
	address = {Hamburg},
	title = {Business {Intelligence}: {Methods} and {Applications}. {Essays} in {Honor} of {Prof}. {H}.-{J}. {Lenz}},
	publisher = {Verlag Dr. Kovac},
	author = {Köppen, Veit},
	editor = {Köppen, Veit and Müller, Roland M.},
	year = {2007},
	note = {Section: Selection of Prof. Lenz's Contributions to Business Intelligence},
	pages = {1--10},
}

@inproceedings{arndt_topic_2007,
	title = {Topic {Maps} for {Representing} {Balanced} {Scorecards}},
	booktitle = {Computational {Economics} and {Financial} and {Industrial} {Systems}, {Cefis} 2007},
	author = {Arndt, Hans-Knud and Graubitz, Henner and Köppen, Veit},
	year = {2007},
	pages = {120--125},
}

@inproceedings{koppen_comparison_2006,
	address = {Rome},
	title = {A comparison between probabilistic and possibilistic models for data validation},
	booktitle = {Proceeding in {Computational} {Statistics} {COMPSTAT} 2006},
	author = {Köppen, Veit and Lenz, Hans-J.},
	editor = {Rizzi A, Vichi M},
	year = {2006},
	pages = {1533--1541},
}

@inproceedings{koppen_balanced_2007-1,
	title = {Balanced {Scorecard} {Simulator} – {A} {Tool} for {Stochastic} {Business} {Figures}},
	booktitle = {Advances in {Data} {Analysis}},
	author = {Köppen, Veit and Allgeier, Marina and Lenz, Hans-J.},
	year = {2007},
	pages = {457--464},
}

@inproceedings{michalarias_towards_2005,
	address = {Kuala Lumpur, Malaysia},
	title = {Towards a {Service} {Oriented} {Architecture} for {Mobile} {Reporting}},
	booktitle = {Proceedings of {International} {Conference} for {Intelligent} {Systems} 2005},
	author = {Michalarias, Ilias and Köppen, Veit},
	year = {2005},
}

@inproceedings{koppen_simulation_2005,
	address = {Melaka},
	title = {Simulation - {A} {Support} for {Controllers} {Decision} {Process}},
	booktitle = {Proceedings of {ICTM} 2005: "{Challenges} and {Prospects}"},
	author = {Köppen, Veit and Hausmann, Anette and Lenz, Hans-J.},
	year = {2005},
	pages = {1155--1170},
}

@inproceedings{koppen_datenvalidierung_2006,
	title = {Datenvalidierung mittels {Simulation} stochastischer {Kennzahlensysteme}},
	booktitle = {Nachwuchsworkshop der {DStatG}},
	author = {Köppen, Veit},
	year = {2006},
}

@article{gernert_von_2005,
	title = {Von {ARIS} zur {UML}: {Transformationen} in der {Prozessmodellierung}},
	volume = {6},
	journal = {ObjektSpektrum},
	author = {Gernert, Christiane and Köppen, Veit and Darkow, Oliver and {Thorsten Schwarz}},
	month = dec,
	year = {2005},
	pages = {53--59},
}

@inproceedings{lenz_edits_2006,
	address = {Washington, DC, USA},
	title = {Edits - {Data} {Cleansing} at the {Data} {Entry} to assert semantic {Consistency} of metric {Data}},
	isbn = {0-7695-2590-3},
	doi = {http://dx.doi.org/10.1109/SSDBM.2006.20},
	booktitle = {{SSDBM} '06: {Proceedings} of the 18th {International} {Conference} on {Scientific} and {Statistical} {Database} {Management}},
	publisher = {IEEE Computer Society},
	author = {Lenz, Hans-J. and Köppen, Veit and Müller, Roland M.},
	year = {2006},
	pages = {235--240},
}

@inproceedings{koppen_simulation_2005-1,
	address = {St. Petersburg, Russia},
	title = {Simulation of {Non}-linear {Stochastic} {Equation} {Systems}},
	booktitle = {Proceeding of the {Fifth} {Workshop} on {Simulation}},
	publisher = {NII Chemistry Saint Petersburg University Publishers},
	author = {Köppen, Veit and Lenz, Hans-J.},
	editor = {S.M. Ermakov, V.B. Melas, A.N. Pepelyshev},
	month = jul,
	year = {2005},
	pages = {373--378},
}

@inproceedings{koppen_transformationsansatz_2005,
	address = {Berlin},
	title = {Ein {Transformationsansatz} in der {Geschäftsprozessmodellierung}},
	booktitle = {Entscheidungsfall {Vorgehensmodelle} - 12. {Workshop} der {GI}-{Fachgruppe} {WI}-{VM}},
	publisher = {Shaker Verlag Aachen},
	author = {Köppen, Veit and Schwarz, Thorsten and Gernert, Christiane},
	editor = {Petrasch, Roland and Höhn, Reinhard and Höppner, Stephan and Wetzel, Herbert and Wiemers, Manuela},
	year = {2005},
	pages = {71--80},
}