• 2019

    Article in Journal

    Lechtenbörger, J. (2019). Erstellung und Weiterentwicklung von Open Educational Resources im Selbstversuch. MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung, 2019(34), 101–117.
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    Conference Paper

    Lechtenbörger, J. (2019). Simplifying license attribution for OER with emacs-reveal. In Proceedings of the 17. Fachtagung Bildungstechnologien (DELFI 2019), Berlin, Deutschland. (Accepted)
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    Chapter in Book

    Hümmecke, A., Lechtenbörger, J., & Vossen, G. (2019). Digitale Lehre — Der FB4 als Vorreiter. In Theurl, T. (Ed.), 50 Jahre Wirtschaftswissenschaftliche Fakultät der WWU Münster — Historie und Perspektiven (pp. 305–309). Münster: Aschendorff Verlag.
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    Lechtenbörger, J., & Vossen, G. (2019). Structuring What You Are Doing: 20 Years of Business Process Modelling. In Bergener, K., Räckers, M., & Stein, A. (Eds.), The Art of Structuring: Bridging the Gap Between Information Systems Research and Practice (pp. 227–238).
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  • 2018

    Report

    Hümmecke, A., Lechtenbörger, J., & Vossen, G. (2018). Digitalisierung der Lehre am Fachbereich 4 der WWU Münster: Bestandsaufnahme und Handlungsempfehlungen. In Becker, J., Hellingrath, B., Klein, S., Kuchen, H., Müller-Funk, U., Trautmann, H., & Vossen, G. (Eds.), Arbeitsberichte des Instituts für Wirtschaftsinformatik: Vol. 141.
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  • 2017

    Report

    Lechtenbörger, J. (2017). Bericht zu JiTT@OperatingSystems.
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  • 2016

    Article in Journal

    Lechtenbörger, J., & Vossen, G. (2016). Hauptspeicherdatenbanken: Denkgeschwindigkeit für alle?. DOAG Business News, 3-2016, 5–7.
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    Chapter in Book

    Lechtenbörger, J., & Vossen, G. (2016). NoSQL, NewSQL, MapReduce und Hadoop. In Chamoni, P., & Gluchowski, P. (Eds.), Analytische Informationssysteme: Business Intelligence-Technologien und -Anwendungen (5th ed., pp. 205–223). Springer Gabler.
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  • 2015

    Article in Journal

    Forster, C., Bruland, P., Lechtenbörger, J., Breil, B., & Vossen, G. (2015). Connecting Clinical Care and Research: Single-Source with x4T — Process Design, Architecture, and Use Cases. Information Technology, 57(1), 63–72.
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    Lechtenbörger, J., Stahl, F., Volz, V., & Vossen, G. (2015). Analyzing Observable Success and Activity Indicators on Crowdfunding Platforms. International Journal of Web Based Communities, 11(3/4), 264–289.
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    Report

    Lechtenbörger, J., Ling, J., & Vossen, G. (2015). Hauptspeicherdatenbanken — Denkgeschwindigkeit auch für KMU?. In Becker, J., Hellingrath, B., Klein, S., Kuchen, H., Müller-Funk, U., Trautmann, H., & Vossen, G. (Eds.), Arbeitsberichte des Instituts für Wirtschaftsinformatik: Vol. 136. Münster.
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    Vossen, G., Lechtenbörger, J., & Fekete, D. (2015). Big Data in kleinen und mittleren Unternehmen — eine empirische Bestandsaufnahme. In Becker, J., Hellingrath, B., Klein, S., Kuchen, H., Müller-Funk, U., Trautmann, H., & Vossen, G. (Eds.), Arbeitsberichte des Instituts für Wirtschaftsinformatik: Vol. 135. Münster.
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  • 2011

    Article in Journal

    Lechtenbörger, J. (2011). Zur Sicherheit von De-Mail. Datenschutz und Datensicherheit (DuD), 2011(4), 268–269.
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    Loos, P., Lechtenbörger, J., Vossen, G., Zeier, A., Krüger, J., & et, a. (2011). In-Memory-Datenmanagement in betrieblichen Anwendungssystemen. WIRTSCHAFTSINFORMATIK, 53(6), 383–390.
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    Conference Paper

    Dziuballe, P., Forster, C., Breil, B., Thiemann, V., Fritz, F., Lechtenbörger, J., Vossen, G., & Dugas, M. (2011). The Single Source Architecture x4T to Connect Medical Documentation and Clinical Research. In Moen, A., Andersen, S. K., Aarts, J., & Hurlen, P. (Eds.), User Centred Networked Health Care — Proceedings of MIE 2011 (pp. 902–906). Studies in Health Technology and Informatics: Vol. 169. IOS Press.
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    Mazón, J.-N., Lechtenbörger, J., & Trujillo, J. (2011). A Model-Driven Approach for Enforcing Summarizability in Multidimensional Modeling. In Proceedings of the The First International Workshop on Modeling and Reasoning for Business Intelligence, Brussels, Belgium, 65–74.
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  • 2009

    Article in Journal

    Mazón, J.-N., Lechtenbörger, J., & Trujillo, J. (2009). A survey on summarizability issues in multidimensional modeling. Data — Knowledge Engineering, 68(12), 1452–1469.
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    Conference Paper

    Dugas, M., Breil, B., Thiemann, V., Lechtenbörger, J., & Vossen, G. (2009). Single Source Information Systems to Connect Patient Care and Clinical Research. In Klaus-Peter, A., Bernd, B., John, M., & Izet, M. (Eds.), Medical Informatics in a United and Healthy Europe — Proceedings of MIE 2009 — The XXIInd International Congress of the European Federation for Medical Informatics (pp. 61–65). Studies in Health Technology and Informatics: Vol. 150. IOS Press.
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    Dugas, M., Breil, B., Thiemann, V., Lechtenbörger, J., & Vossen, G. (2009). Single Source Informationssysteme — Nutzung von Routinedaten für die klinische Forschung. In Proceedings of the 54. Jahrestagung der Deutschen Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie e.V. (GMDS), Essen.
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    Article in Encyclopedia

    Lechtenbörger, J. (2009). 2-PC Protocol. In Liu, L. Ö., & MT, (Eds.), Encyclopedia of Database Systems. Springer.
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  • 2008

    Conference Paper

    Dahl, D., Lechtenbörger, J., Sieberg, J., & Vossen, G. (2008). Learnr — Web 2.0-Driven Learning. In Proceedings of the 7th IASTED International Conference onWeb-Based Education (WBE), Innsbruck, Austria, 259–264.
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    Dahl, D., Lechtenbörger, J., Sieberg, J., & Vossen, G. (2008). Process Learning in a Web 2.0-Inspired Learning Environment. In Proceedings of the the 1st International eLBa Science Conference, Rostock, 139–146.
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    Mazón, J.-N., Lechtenbörger, J., & Trujillo, J. (2008). Solving Summarizability Problems in Fact-Dimension Relationships for Multidimensional Models. In Proceedings of the ACM International Workshop on Data Warehousing and OLAP (DOLAP), Napa Valley, California, USA, 57–64.
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    Report

    Lechtenbörger, J. (2008). Learnr-gemeinsam lernen — Bericht zum Zeitraum Juli-Dezember 2007. In Grob, H., & Buddendick, C. (Eds.), Praxisbericht Nr. 65 des E-Learning Kompetenzzentrums Münster. Münster, Germany.
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  • 2007

    Article in Journal

    Mazón, J.-N., Trujillo, J., & Lechtenbörger, J. (2007). Reconciling requirement-driven data warehouses with data sources via multidimensional normal forms. Data — Knowledge Engineering, 63(3), 725–751.
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    Conference Paper

    Haselmann, T., Lechtenbörger, J., & Vossen, G. (2007). Data Warehouse Detective: Schema Design Made Easy. In Proceedings of the 12th GI Conference on Database Systems in Business, Technology, and Web (BTW), Aachen, Germany, 606–608.
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  • 2006

    Article in Journal

    Golfarelli, M., Lechtenbörger, J., Rizzi, S., & Vossen, G. (2006). Schema Versioning in Data Warehouses: Enabling Cross-Version Querying via Schema Augmentation. Data — Knowledge Engineering, 59(2), 435–459.
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    Conference Paper

    Mazón, J.-N., Trujillo, J., & Lechtenbörger, J. (2006). A Set of QVT Relations to Assure the Correctness of Data Warehouses by Using Multidimensional Normal Forms. In Proceedings of the International Conference on Conceptual Modeling (ER), Tucson, Arizona, USA, 385–398.
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    Rizzi, S., Abelló, S., Lechtenbörger, J., & Trujillo, J. (2006). Research in Data Warehouse Modeling and Design: Dead or Alive?. In Proceedings of the ACM International Workshop on Data Warehousing and OLAP (DOLAP), Arlington, VA, USA, 3–10.
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  • 2005

    Article in Journal

    Dombrowski, E., & Lechtenbörger, J. (2005). Evaluation objektorientierter Ansätze zur Data-Warehouse-Modellierung. Datenbank-Spektrum, 2005(15), 18–25.
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    Conference Paper

    Lechtenbörger, J. (2005). Keynote: My Favorite Issues in Data Warehouse Modeling. In Proceedings of the ACM International Workshop on Data Warehousing and OLAP (DOLAP), Bremen, Germany, 87–87.
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  • 2004

    Article in Journal

    Lechtenbörger, J. (2004). Computing Unique Canonical Covers for Simple FDs via Transitive Reduction. Information Processing Letters, 2004(92 (4)), 169–174.
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    Conference Paper

    Golfarelli, M., Lechtenbörger, J., Rizzi, S., & Vossen, G. (2004). Schema Versioning in Data Warehouses. In Proceedings of the 3rd International Workshop on Evolution and Change in Data Management (ECDM), Shanghai, China, 415–428.
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  • 2003

    Article in Journal

    Lechtenbörger, J., & Vossen, G. (2003). Multidimensional Normal Forms for Data Warehouse Design. Information Systems, 28(5), 415–434.
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    Lechtenbörger, J., & Vossen, G. (2003). Qualitätsorientierter Schemaentwurf für Datenlager. it — Information Technology, 45(4), 190–195.
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    Conference Paper

    Lechtenbörger, J. (2003). Data Warehouse Schema Design. In Proceedings of the Datenbanksysteme für Business, Technologie und Web (BTW), Leipzig, 513–522.
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    Lechtenbörger, J. (2003). The impact of the constant complement approach towards view updating. In Proceedings of the Principles of Database Systems (PODS), San Diego, California, USA, 49–55.
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    Chapter in Book

    Lechtenbörger, J., Vossen, G., & Kuchen, H. (2003). Sichten-Wartung in Datenlagern — Controlling aus datenbanktechnischer Sicht. In Physica-Verlag, (Ed.), Trendberichte zum Controlling (pp. 495–510). Heidelberg: Physica-Verlag.
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  • 2002

    Article in Journal

    Lechtenbörger, J., Shu, H., & Vossen, G. (2002). Aggregate Queries over Conditional Tables. Journal of Intelligent Information Systems, 19(3), 343–362.
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    Conference Paper

    Hüsemann, B., Lechtenbörger, J., Vossen, G., & Westerkamp, P. (2002). XLX — A Platform for Graduate-Level Exercises. In Proceedings of the International Conference on Computers in Education (ICCE), Auckland, Neuseeland, 1262–1266.
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    Lechtenbörger, J., & Vossen, G. (2002). On the Computation of Relational View Complements. In Proceedings of the 21st Annual ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems (PODS), Madison, WI, 142–149.
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  • 2001

    Article in Journal

    Laurent, D., Lechtenbörger, J., Spyratos, N., & Vossen, G. (2001). Monotonic Complements for Independent Data Warehouses. The VLDB Journal, 10(4), 295–315.
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    Thesis

    Lechtenbörger, J. (2001). Data Warehouse Schema Design. Dissertation at the WWU Münster. DISDBIS: Vol. 79. Infix.
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    Report

    Vossen, G., Hüsemann, B., & Lechtenbörger, J. (2001). XLX — Eine Lernplattform für den universitären Übungsbetrieb. In Becker, J., Grob, H.-L., Klein, S., Kuchen, H., Müller-Funk, U., & Vossen, G. (Eds.), Arbeitsberichte des Instituts für Wirtschaftsinformatik: Vol. 79. Münster: Institut für Wirtschaftsinformatik, WWU Münster.
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  • 2000

    Conference Paper

    Hüsemann, B., Lechtenbörger, J., & Vossen, G. (2000). Conceptual Data Warehouse Design. In Proceedings of the 2nd International Workshop on Design and Management of Data Warehouses (DMDW), Stockholm, 6.1-6.11.
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    Lechtenbörger, J. (2000). Aggregatanfragen über bedingten Tabellen. In Proceedings of the Informatiktage, Bad Schussenried, Germany, 254–256.
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    Lechtenbörger, J., & Vossen, G. (2000). On Herbrand Semantics and Conflict Serializability of Read-Write Transactions. In Proceedings of the 19th Annual ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems (PODS), Dallas, TX, 187–194.
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  • 1999

    Article in Journal

    Lechtenbörger, J., & Vossen, G. (1999). Sichten-Wartung in Datenwarenhäusern. Informatik — Informatique (Journal der Schweizer Informatikergesellschaft), 3, 14–17.
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    Lechtenbörger, J., & Vossen, G. (1999). Unabhängigkeit von Datenwarenhäusern mit Sternschema. EMISA Forum, 2, 11–25.
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    Conference Paper

    Laurent, D., Lechtenbörger, J., Spyratos, N., & Vossen, G. (1999). Complements for Data Warehouses. In Proceedings of the 15th IEEE International Conference on Data Engineering (ICDE), Sydney, Australien, 490–499.
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    Chapter in Book

    Lechtenbörger, J., & Thoben, W. (1999). Sicherheitsanalyse von Geschäftsprozessen unter Verwendung der Prozeßalgebra CCS. In Röhm, A., Fox, D., Grimm, R., & Schoder, D. (Eds.), Sicherheit und Electronic Commerce (pp. 163–179). Braunschweig/Wiesbaden: Vieweg.
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