Proceedings of University of Hamburg Hamburger Informatik Technologie‐Center e.V. Department of Computer Science Vogt‐Kölln‐Str. 30, 22527 Hamburg GERMANY ISSN 1613‐0073 Lothar HOTZ, Michel ALDANONDO, Thorsten KREBS, Editors Proceedings of the 21th International Configuration Workshop September 18‐19, 2019, Hamburg, Germany Lothar Hotz, University of Hamburg, HITeC, Hamburg, Germany Michel Aldanondo, Toulouse University, Mines Albi, France Thorsten Krebs, encoway GmbH, Bremen, Germany
Michel Aldanondo, Toulouse University, Mines Albi, France
Tomas Axling, Tacton Systems, Denmark Andrés Felipe Barco, Universidad Santiago de Cali, Colombia David Benavides, University of Seville, Spain
Andreas Falkner, Siemens AG, Austria Alexander Felfernig, Graz University of Technology, Austria
Cipriano Forza, University of Padova, Italy
Gerhard Friedrich, University of Klagenfurt, Austria Paul Grünbacher, Johannes Kepler University Linz, Austria Albert Haag, Product Management GmbH, Germany Alois Haselböck, Siemens AG, Austria
Petri Helo, University of Vaasa, Finland Lothar Hotz, University of Hamburg, HITeC, Germany Dietmar Jannach, University of Klagenfurt, Austria Thorsten Krebs, encoway GmbH, Bremen, Germany
Tomi Männistö, University of Helsinki, Finland
Mikko Raatikainen, Aalto University, Finland
Rick Rabiser, Johannes Kepler University Linz, Austria Sara Shafiee, Technical University of Denmark, Denmark Markus Stumptner, University of South Australia, Australia
Juha Tiihonen, University of Helsinki, Finland Elise Vareilles, Toulouse University, Mines Albi, France Yue Wang, Hang Seng Management College, Hong Kong Linda Zhang, IESEG Business School of Management Paris, France
Lothar Hotz, University of Hamburg, HITeC, Germany
Evelyn Staske, HITeC, Germany Configuration is the task of composing product models of complex systems from parameterisable components. This task demands for powerful knowledge‐representation formalisms to capture the great variety and complexity of configurable product models. Furthermore, efficient reasoning and conflict resolution methods are required to provide intelligent interactive behavior in configurator software, such as solution search, satisfaction of user preferences, personalization, or optimization. The main goal of the Configuration Workshop is to promote high‐quality research in all technical and application areas related to configuration. In this year, besides typical contributions about knowledge representation and reasoning in configuration, adaptation and re‐configuration of delivered products is a one focus. The workshop is of interest for both, researchers working in the various fields of Artificial Intelligence (AI) technologies as well as industry representatives interested in the relationship between configuration technology and the business problem behind configuration and mass customization. It provides a forum for the exchange of ideas, evaluations and experiences especially in the use of AI techniques within these application and research areas. The 2019 Workshop on Configuration continues the series of workshops started at the AAAI'96 Fall Symposium and continued on IJCAI, AAAI, and ECAI since 1999. In recent years, the workshop was held independently from major conferences. This year special thanks has to be given to following Configuration Workshop Sponsors: Siemens (Austria), Product Management Haag (Germany), Variantum (Finland), EventHelpr (Austria), encoway (Germany), IMT Mines‐Albi‐Carmaux (France), HITeC (Germany), University of Hamburg (Germany) Lothar Hotz, Michel Aldanondo, and Thorsten Krebs September 2019 Consistency Management Coping with Inconsistent Models of Requirements Juha Tiihonen, Mikko Raatikainen, Lalli Myllyaho, Clara Marie Lüders, and Tomi Männistö Consistency‐based Merging of Variability Models Alexander Felfernig, Mathias Uta, Gottfried Schenner, and Johannes Spöcklberger Conversational Recommendations Utilizing Model‐based Reasoning Oliver Tazl, Alexander Perko, and Franz Wotawa Decision Biases in Preference Acquisition Martin Stettinger, Alexander Felfernig, and Ralph Samer Constraint Solver Requirements for Interactive Configuration Andreas Falkner, Alois Haselböck, Gerfried Krames, Gottfried Schenner, and Richard Taupe Configuration and Standards Portfolio Management: How to Find Your Standard Variants Frank Dylla, Daniel Jeuken, and Thorsten Krebs 61 65