Göllner T, Schwarz J-H, Gottschalk S, Sauer S. Distributed merchandise management system. 2021.

Gottschalk S, Yigitbas E, Nowosad A, Engels G. Situation-specific Business Model Development Methods for Mobile App Developers. In: Enterprise, Business-Process and Information Systems Modeling. Springer; 2021. doi:10.1007/978-3-030-79186-5_17

Weidmann N, Anjorin A. Schema Compliant Consistency Management via Triple Graph Grammars and Integer Linear Programming. Formal Aspects of Computing. 2021. doi:10.1007/s00165-021-00557-0

Jovanovikj I, Thottam AT, Joseph Vincent V, Yigitbas E, Sauer S, Engels G. A Modeling Workbench for the Development of Situation-specific Test Co-Migration Methods . In: Proceedings of the 9th International Conference on Model-Driven Engineering and Software Development . SCITEPRESS; 2021:232-239.

Nickchen T, Heindorf S, Engels G. Generating Physically Sound Training Data for Image Recognition of Additively Manufactured Parts. In: Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision. ; 2021:1994-2002.

Gottschalk S. Situation-specific Development of Business Models for Services in Software Ecosystems. In: Advanced Software Engineering. Doctorial Consortium. CEUR; 2021.

Weidmann N, Salunkhe S, Anjorin A, Yigitbas E, Engels G. Automating Model Transformations for Railway Systems Engineering. The Journal of Object Technology. 2021. doi:10.5381/jot.2021.20.3.a10

Yigitbas E, Karakaya K, Jovanovikj I, Engels G. Enhancing Human-in-the-Loop Adaptive Systems through Digital Twins and VR Interfaces. In: 2021 International Symposium on Software Engineering for Adaptive and Self-Managing Systems (SEAMS). ; 2021. doi:10.1109/seams51251.2021.00015

Weidmann N, Engels G. Concurrent model synchronisation with multiple objectives. In: Proceedings of the Genetic and Evolutionary Computation Conference. ; 2021. doi:10.1145/3449639.3459283

Vorbohle C, Gottschalk S. Towards Visualizing and Simulating Business Models in Dynamic Platform Ecosystems . In: Proceedings of the 29th European Conference on Information Systems (ECIS). AIS.

Gottschalk S, Aziz MS, Yigitbas E, Engels G. Design Principles for a Crowd-Based Prototype Validation Platform. In: Wang X, Martini A, Nguyen-Duc A, Stray V, eds. Software Business - 12th International Conference, ICSOB 2021, Drammen, Norway, December 2-3, 2021, Proceedings. Vol 434. Lecture Notes in Business Information Processing. Springer; 2021:205–220. doi:10.1007/978-3-030-91983-2_16

Gottschalk S, Yigitbas E, Nowosad A, Engels G. Situation- and  Domain-specific Composition and Enactment of Business Model Development Methods. In: Product-Focused Software Process Improvement. Springer; 2021.

Yigitbas E, Jovanovikj I, Engels G. Simplifying Robot Programming using Augmented Reality and End-User Development. In: Proceedings of the 18th IFIP T International Conference on Human-Computer Interaction (INTERACT 2021) . Springer; 2021.

Yigitbas E, Sauer S, Engels G. Using Augmented Reality for Enhancing Planning and Measurements in the Scaffolding Business. In: Proceedings of the 13th ACM SIGCHI Symposium on Engineering Interactive Computing Systems (EICS 2021). ACM; 2021.

Yigitbas E, Gorissen S, Weidmann N, Engels G. Collaborative Software Modeling in Virtual Reality. In: Proceedings of the 24th International Conference on Model Driven Engineering Languages and Systems (MODELS’21) . ACM/IEEE; 2021.

Kirchhoff J, Burmeister SC, Weskamp C, Engels G. Towards a Decision Support System for Cross-Sectoral Energy Distribution Network Planning. In: Breitner MH, Lehnhoff S, Nieße A, Staudt P, Weinhardt C, Werth O, eds. Energy Informatics and Electro Mobility ICT. ; 2021.

Schwichtenberg B. Modeling and Analyzing Software Ecosystems.; 2021. doi:10.17619/UNIPB/1-1270 

Yigitbas E, Klauke J, Gottschalk S, Engels G. VREUD - An End-User Development Tool to Simplify the Creation of Interactive VR Scenes. In: Proceedings of the 2021 IEEE Symposium on Visual Languages and Human-Centric Computing (VL/HCC) . IEEE; 2021.

Kirchhoff J. Providing Decision Makers with Tailored Decision Support Systems. In: The 1st Early Career Researchers Workshop Co-Located with ECSS 2021. ; 2021.

Nickchen T, Heindorf S, Engels G. Generating Physically Sound Training Data for Image Recognition of Additively Manufactured Parts. In: 2021 IEEE Winter Conference on Applications of Computer Vision (WACV). IEEE; 2021. doi:10.1109/wacv48630.2021.00204

N. N. Design and Implementation of a Crowd-Based Prototype Validation Platform.; 2021.

N. N. Model-Based Continuous Experimentation for Software Product Prototypes.; 2021.

N. N. Lightweight Process Engine for Situation-Specific Development of Business Models for Digital Platforms.; 2021.

N. N. Development and Evaluation of a Multi Platform Approach for Augmented Reality Product Configuration.; 2021.

N. N. Model-Based Feature Backlog Synchronization for Dual-Track Development Methods.; 2021.

Biermeier K, Yigitbas E, Weidmann N, Engels G. Ensuring User Interface Adaptation Consistency through Triple Graph Grammers. In: Proceedings of the International Workshop on Human-Centered Software Engineering for Changing Contexts of Use . ; 2021.

Gottschalk S, Yigitbas E, Schmidt E, Engels G. ProConAR: A Tool Support for Model-based AR Product Configuration. In: Bernhaupt R, Ardito C, Sauer S, eds. Human-Centered Software Engineering. HCSE 2020. Vol 12481. Lecture Notes in Computer Science. Cham: Springer; 2020. doi:10.1007/978-3-030-64266-2_14

Jovanovikj I, Yigitbas E, Sauer S, Engels G. Augmented and Virtual Reality Object Repository for Rapid Prototyping . In: Proceedings of the 8th International Working Conference on Human-Centered Software Engineering (HCSE’20). Springer; 2020:216-224.

Engels G. Der digitale Fußabdruck, Schatten oder Zwilling von Maschinen und Menschen. Gruppe Interaktion Organisation Zeitschrift für Angewandte Organisationspsychologie (GIO). Published online 2020:363-370. doi:10.1007/s11612-020-00527-9

Anjorin A, Weidmann N, Oppermann R, Fritsche L, Schürr A. Automating test schedule generation with domain-specific languages. In: Syriani E, Sahraoui H, de Lara J, Abrahao S, eds. Proceedings of the 23rd ACM/IEEE International Conference on Model Driven Engineering Languages and Systems, MODELS 2020. ACM; 2020. doi:10.1145/3365438.3410991

Weidmann N, Fritsche L, Anjorin A. A search-based and fault-tolerant approach to concurrent model synchronisation. In: Lämmel R, Tratt L, de Lara J, eds. Proceedings of the 13th ACM SIGPLAN International Conference on Software Language Engineering, SLE 2020. ACM; 2020. doi:10.1145/3426425.3426932

Weidmann N, Anjorin A, Cheney J. VICToRy: Visual Interactive Consistency Management in Tolerant Rule-based Systems. In: Hoffmann B, Minas M, eds. Proceedings of the Eleventh International Workshop on Graph Computation Models, GCM@STAF 2020. EPTCS; 2020:1-12. doi:10.4204/eptcs.330.1

Jovanovikj I, Weidmann N, Yigitbas E, Anjorin A, Sauer S, Engels G. A Model-Driven Mutation Framework for Validation of Test Case Migration. In: Babur Ö, Denil J, Vogel-Heuser B, eds. Proceedings of the First International Conference on Systems Modelling and Management, ICSMM 2020 . Cham: Springer; 2020. doi:10.1007/978-3-030-58167-1_2

Jazayeri B, Schwichtenberg S, Küster J, Zimmermann O, Engels G. Modeling and Analyzing Architectural Diversity of Open Platforms. In: Advanced Information Systems Engineering. Cham; 2020. doi:10.1007/978-3-030-49435-3_3

Nickchen T, Engels G, Lohn J. Opportunities of 3D Machine Learning for Manufacturability Analysis and Component Recognition in the Additive Manufacturing Process Chain. In: Industrializing Additive Manufacturing. Cham; 2020. doi:10.1007/978-3-030-54334-1_4

Yigitbas E. Model-driven engineering and usability evaluation of self-adaptive user interfaces. In: ACM SIGWEB Newsletter. ACM; 2020. doi:https://doi.org/10.1145/3427478.3427480

Yigitbas E, Tejedor CB, Engels G. Experiencing and Programming the ENIAC in VR. In: Proceedings of the Mensch Und Computer 2020 (MuC ’20). ; 2020.

Augstein M, Buschek D, Herder E, Loepp B, Yigitbas E, Ziegler J. UCAI 2020 - 1st International Workshop on User-Centered Artificial Intelligence. In: Proceedings of the Mensch Und Computer 2020 (MuC ’20). ACM; 2020.

Yigitbas E, Jovanovikj I, Scholand J, Engels G. VR Training for Warehouse Management . In: Proceedings of the 26th ACM Symposium on Virtual Reality Software and Technology (VRST). ACM; 2020.

Gottschalk S, Yigitbas E, Schmidt E, Engels G. Model-based Product Configuration in Augmented Reality Applications. In: Bernhaupt R, Ardito C, Sauer S, eds. Human-Centered Software Engineering. HCSE 2020. Vol 12481. Lecture Notes in Computer Science. Cham: Springer; 2020. doi:10.1007/978-3-030-64266-2_5

Jovanovikj I, Yigitbas E, Sauer S, Engels G. Challenges in Model-Driven Development of Multi-Platform Augmented Reality Applications . Softwaretechnik-Trends, Proceedings of the 22st Workshop Software-Reengineering &; Evolution (WSRE) &; 11h Workshop Design for Future (DFF). 2020.

Gottschalk S, Rittmeier F, Engels G. Hypothesis-driven Adaptation of Business Models based on Product Line Engineering. In: Proceedings of the 22nd IEEE International Conference on Business Informatics. IEEE; 2020. doi:10.1109/CBI49978.2020.00022

Gottschalk S, Yigitbas E, Engels G. Model-based Hypothesis Engineering for Supporting Adaptation to Uncertain Customer Needs. In: Shishkov B, ed. Business Modeling and Software Design. Vol 391. Lecture Notes in Business Information Processing. Springer International Publishing; 2020:276-286. doi:10.1007/978-3-030-52306-0_18

Weidmann N, Anjorin A. Schema Compliant Consistency Management via Triple Graph Grammars and Integer Linear Programming. In: Wehrheim H, Cabot J, eds. Proceedings of the 23rd International Conference on Fundamental Approaches to Software Engineering, FASE 2020. Cham: Springer; 2020. doi:10.1007/978-3-030-45234-6_16

Jovanovikj I, Yigitbas E, Sauer S, Engels G. Concept-based Co-Migration of Test Cases. In: Proceedings of the 8th International Conference on Model-Driven Engineering and Software Development - Volume 1: MODELSWARD. ; 2020. doi:10.5220/0009171404490456

Jovanovikj I, Yigitbas E, Sauer S, Engels G. Test Case Co-Migration Method Patterns. Software Engineering 2020 Workshopband. 2020.

Yigitbas E, Jovanovikj I, Biermeier K, Sauer S, Engels G. Integrated Model-driven Development of Self-adaptive User Interfaces . International Journal on Software and Systems Modeling (SoSyM). 2020.

Yigitbas E, Jovanovikj I, Sauer S, Engels G. On the Development of Context-aware Augmented Reality Applications . In: Handling Security, Usability, User Experience and Reliability in User-Centered Development Processes - IFIP WG 13.2/13.5. Springer, LNCS; 2020.

Jovanovikj I, Nagaraj A, Yigitbas E, Anjorin A, Sauer S, Engels G. Validating Test Case Migration via Mutation Analysis . In: Proceedings of the 1st IEEE/ACM International Conference on Automation of Software Test AST. ACM; 2020:31-40.

Yigitbas E, Jovanovikj I, Biermeier K, Sauer S, Engels G. Integrated model-driven development of self-adaptive user interfaces. Software and Systems Modeling. 2020;19(5):1057-1081. doi:10.1007/s10270-020-00777-7