TY - CONF AU - Lütkemeier, Björn AU - Thöne, Sebastian ID - 7879 T2 - Proceedings of the Fachwissenschaftlicher Informatik-Kongress (Informatiktage 2001), Bad Schussenried (Germany) TI - Prozessorientierte Integration von Softwarekomponenten durch XML-basierte Workflow-Modelle ER - TY - CONF AU - Baldan, Paolo AU - Corradini, Andrea AU - Ehrig, Hartmut AU - Heckel, Reiko ID - 7880 T2 - Proceedings of the conference on Concurrency Theory (CONCUR 2001), Aalborg (Denmark) TI - Compositional Modeling of Reactive Systems Using Open Nets VL - 2154 ER - TY - CONF AU - Küster, Jochen AU - Stroop, Joachim ID - 7881 T2 - Proceedings of the conference on Object-Oriented Real-Time Distributed Computing (ISORC 2001), Magdeburg (Germany) TI - Consistent Design of Embedded Real-Time Systems with UML-RT ER - TY - CONF AU - Depke, Ralph AU - Heckel, Reiko AU - Küster, Jochen ID - 7882 T2 - Proceedings of the Fifth International Conference on Autonomous Agents (AGENTS 2001), Montreal (Canada) TI - Improving the Agent-Oriented Modeling Process with Roles ER - TY - CONF AU - Depke, Ralph AU - Heckel, Reiko ID - 7883 T2 - Proceedings of the 9. Kolloquium Software-Entwicklung für Internet und Intranet, Ostfildern (Germany) TI - Modellierung von Prozessen mit UML und Realisierung durch eine Internet-Agentenplattform ER - TY - CONF AB - Object-oriented modeling favors the modeling of object behavior from different viewpoints and at different levels of abstraction. This gives rise to consistency problems between overlapping or semantically related submodels. The absence of a formal semantics for the UML and the numerous ways of employing the language within the development process lead to a number of different consistency notions. Therefore, general meta-level techniques are required for specifying, analyzing, and communicating consistency constraints. In this paper, we discuss the issue of consistency of behavioral models in the UML and present techniques for specifying and analyzing consistency. Using meta-model rules we transform elements of UML models into a semantic domain. Then, consistency constraints can by specified and validated using the language and the tools of the semantic domain. This general methodology is exemplified by the problem of protocol statechart inheritance. AU - Engels, Gregor AU - Heckel, Reiko AU - Küster, Jochen ID - 7884 T2 - Proceedings of the conference on The Unified Modeling Language, Modeling Languages, Concepts, and Tools (UML 2001), Toronto (Canada) TI - Rule-Based Specification of Behavioral Consistency Based on the UML Meta-model VL - 2185 ER - TY - CONF AB - Object-oriented modeling favors the modeling of object behavior from different viewpoints and the successive refinement of behavioral models in the development process. This gives rise to consistency problems of behavioral models. The absence of a formal semantics for UML models and the numerous possibilities of employing behavioral models within the development process lead to the rise of a number of different consistency notions. In this paper, w e discuss the issue of consistency of behavioral models in the UML and present a general methodology how consistency problems can be dealt with. According to the methodology, those aspects of the models relevant to the consistency are mapped to a semantic domain in which precise consistency tests can be formulated. The choice of the semantic domain and the definition of consistency conditions can be used to construct different consistency notions. We show the applicability of our methodology by giving an example of a concrete consistency problem of concurrent object-oriented models. AU - Engels, Gregor AU - Küster, Jochen AU - Groenewegen, Luuk AU - Heckel, Reiko ID - 7885 IS - 5 T2 - Proceedings of the 8th European Software Engineering Conference (ESEC 2001) and 9th ACM SIGSOFT Symposium on the Foundations of Software Engineering (FSE-9), Vienna (Austria) TI - A methodology for specifying and analyzing consistency of object-oriented behavioral models VL - 26 ER - TY - CONF AU - Geiger, Christian AU - Flake, Stephan AU - Küster, Jochen ID - 7886 T2 - Proceedings of International NAISO Symposium on Information Science Innovations in Engineering of Natural and Artificial Intelligent Systems (ENAIS 2001), Dubai (United Arab Emirates) TI - Towards UML-based Analysis and Design of Multi-Agent Systems ER - TY - CONF AU - Heckel, Reiko AU - Engels, Gregor ID - 7887 IS - UNL-DI-1-2001 T2 - Proceeding of International Special Session on Formal Foundations of Software Evolution (FFSE 2001, co-located with the Conference on Software Maintenance and Reengineering), Lisbon (Portugal) TI - Graph Transformation as a Meta Language for Dynamic Modeling and Model Evolution ER - TY - CONF AU - Hendrik Hausmann, Jan AU - Heckel, Reiko AU - Sauer, Stefan ID - 7888 T2 - Proceedings of the IEEE Symposia on Human Centric Computing Languages and Environments (HCC 2001), Stresa (Italy) TI - Towards Dynamic Meta Modeling of UML Extensions: An Extensible Semantics for UML Sequence Diagrams ER - TY - CONF AB - In Requirements Engineering structural and functional requirements for a new software system are gathered, analyzed, and manifested. Unfortunately the connection between these aspects gets lost in the standard object oriented methodology and has to be re-established later on. Not only is this tedious work but the detection of conflicts and inconsistencies in early phases is hindered by the separation of static and dynamic aspects. We propose the use of graph transformations to specify the connection between these aspects. Based on what we call an integrated business model, consistency analysis at the requirements model level becomes possible. Keywords: UML, Unified Process, functional specifications, integrated business model, graph transformation 1 Introduction At the beginning of each software development there are several ideas or visions of what the system to be build should achieve. The techniques developed in the area of requirements engineering are concerned with gathering, structuring and integrating these different ideas for the new system. It is the goal of this process to achieve a set of reasonable and consistent requirements for the further development process. The main problem is the detection and resolution of inconsistencies and conflicts between competing requirements. The application of formal methods and notations promises to support this task by enabling automated analysis. Although multiple formal methods have been proposed by scientists (see e.g. [7] for a survey), the standard methodologies in object oriented software engineering still use very informal and imprecise techniques in this phase of the development process. In particular, what is missing is a coupling between the structural (data) description (captured in class diagrams) and the behavior of the system (captured in activity and use case diagrams). In this paper we will show how to improve this situation by giving use cases a precise description, thus achieving a coupling of the dynamic and static parts of the model. This allows to apply formal techniques of consistency analysis. The paper is organized as follows: Section 2 gives an introduction to the requirements analysis phase in the Unified Process (UP) and points out some weak points of this approach. We will advance the basic ideas presented in the UP by further elaborating the ideas of a business model and formalizing their notion in Section 3. Section 4 introduces use case diagrams and their new role in the context of the integrated business model. Section 5 extends the notion of views to structure the whole requirements model and the concluding Section 6 gives perspectives toward further work on this topic. AU - Hendrik Hausmann, Jan AU - Heckel, Reiko ID - 7889 T2 - Proceedings of the GI/OCG-Jahrestagung on Wirtschaft und Wissenschaft in der Network Economy - Visionen und Wirklichkeit (2001), Wien (Österreich) TI - Use Cases as views: A formal approach to Requirements engineering in the Unified Process VL - 1 ER - TY - CONF AB - One important application of Petri nets is thespecification of workflows. Such a specification is needed, for example, when interoperability of the workflows is an issue, which is frequently the case when business processes of different organizations shall be integrated.A workflow net is a Petri net satisfying some structural constraints, like the existence of one initial and one final place, and a corresponding soundness condition.An interorganizational workflow is modeled as a set of such workflow nets connected through additional places for asynchronous communication and synchronization requirements on transitions.In this contribution we interpret an interorganizational workflow as acomposition of open nets. This allows us to project processes of the overall net to open processes of the local nets and,vice versa, to deduce the global behavior from the behavior of the components.Such a compositional uunderstanding of workflows can be used to simulate and test local workflow nets in an unknown environment, and it provides the semantic justification for reusable components. AU - Heckel, Reiko ID - 7890 T2 - Proceedings of the 2nd International Colloquium on Petri Net Technologies for Modelling Communication Based Systems TI - Open Petri Nets as Semantic Model for Business Process Integration ER - TY - CONF AU - Heckel, Reiko AU - Sauer, Stefan ID - 7891 T2 - Proceedings of the 4th International Conference on Fundamental Approaches to Software Engineering (FASE 2001), Genova (Italy) TI - Strengthening UML Collaboration Diagrams by State Transformations VL - 2029 ER - TY - CONF AU - Küster, Jochen ID - 7892 T2 - Proceedings of the Forum on Design Languages (FDL'01) TI - Towards Behavior Consistent Modeling in UML-RT ER - TY - CONF AB - Availability of precise, yet usable modeling languages is essential to the construction of multimedia systems based on software engineering principles and methods. Although several languages have been proposed for the specification of isolated multimedia system aspects, there not yet exists an integrated modeling language that adequately supports multimedia software development in practice. We propose an extension of the Unified Modeling Language (UML) for the integrated specification of multimedia systems based on an object-oriented development method. Since integration of co-existing timed procedural and interactive behavior is at the heart of multimedia systems, we focus on UML-based specification of behavior in this paper. In addition, we outline how these behavioral aspects are to be integrated with media, presentation, and software architecture modeling to achieve a coherent and consistent model. AU - Sauer, Stefan AU - Engels, Gregor ID - 7893 T2 - Proceedings of the IEEE Symposia on Human Centric Computing Languages and Environments (HCC 2001), Stresa (Italy) TI - UML-based Behavior Specification of Interactive Multimedia Applications ER - TY - CONF AU - Heckel, Reiko AU - Zündorf, Albert ED - Ehrig, H. ED - Padberg, J. ID - 7894 T2 - Proceeding of the workshop on Uniform Approaches to Graphical Process Specifcation Techniques (UNIGRA 2001, satellite event of the ETAPS 2001) TI - How to Specify a Graph Transformation Approach - A Meta Model for Fujaba VL - 44 ER - TY - CONF AU - Krauter, Stefan ID - 8127 T2 - Proceedings of the 7th International Building Performance Simulation Association Conference, Rio de Janeiro (Brasilien), 13.–15. August 2001, S. 619–626 TI - New façade system consisting of combined photovoltaic and solar thermal generators with building insulation ER - TY - CONF AU - Krauter, Stefan AU - Ochs, F. AU - Depping, T. ID - 8128 T2 - Proceedings of the 17th European Photovoltaic Solar Energy Conference and Exhibition, München (Deutschland), 22.–26. Oktober 2001, Band 3, S. 2598–2599 TI - Satellite Monitoring of Remote PV-Systems ER - TY - CONF AU - Ochs, F. AU - Krauter, Stefan ID - 8129 T2 - Proceedings of the 17th European Photovoltaic Solar Energy Conference and Exhibition, München (Deutschland), 22.–26. Oktober 2001, Band 3, S. 2595–2597 TI - Development of an All-in-one Solar Home System ER - TY - CONF AU - Ochs, F. AU - Krauter, Stefan ID - 8130 T2 - Proceedings of the 18th Conference on Passive and Low Energy Architecture, Florianópolis (Brasilien), 7.–9. November 2001, Band 2, S. 917–919 TI - Online Energy Monitoring and Control of a School Building ER - TY - CONF AU - Krauter, Stefan ID - 8131 T2 - Proceedings of the 18th Conference on Passive and Low Energy Architecture, Florianópolis (Brasilien), 7.–9. November 2001, Band 1, S. 275–262 TI - Façade Elements for Combined Photovoltaic–Solar Thermal Energy Generation and Building Insulation ER - TY - CONF AU - Krauter, Stefan AU - Valentin, G. ID - 8132 T2 - Proceedings of the 18th Conference on Passive and Low Energy Architecture, Florianópolis (Brasilien), 7.–9. November 2001, Band 1, S. 283–285 TI - Software for Simulation of Photovoltaic Systems in Buildings ER - TY - CONF AU - Krauter, Stefan ID - 8133 T2 - Proceedings of the 18th Conference on Passive and Low Energy Architecture, Florianópolis (Brasilien), 7.–9. November 2001, Band. 2, S. 1049–1052 TI - RIO 02 – The World Energy and Climate Event ER - TY - CONF AU - Krauter, Stefan AU - Ochs, F. ID - 8138 T2 - Proceedings of the ISES 2001 Solar World Congress, Adelaide (Australia), 25–30 November 2001, S.1641–1647 TI - All-in-one Solar Home System ER - TY - CONF AU - Krauter, Stefan AU - Depping, T. AU - Ochs, F. ID - 8139 T2 - Proceedings of the ISES 2001 Solar World Congress, Adelaide (Australien), 25.–.30 November 2001, S. 1485–1490 TI - A Satellite Monitoring System for Remote Renewable Energy Systems in Brazil ER - TY - CONF AU - Krauter, Stefan ID - 8140 T2 - Proceedings of the ISES 2001 Solar World Congress, Adelaide (Australia), 25–30 November 2001, S. 1473–1480 TI - RIO 02 – World Climate and Energy Event ER - TY - GEN AU - Engels, Gregor AU - Küster, Jochen AU - Groenewegen, Luuk ID - 8211 TI - On the Specification and Analysis of Protocols in UML-RT ER - TY - JOUR AU - Kundisch, Dennis AU - Dzienziol, J. AU - Eberhardt, M. AU - Pinnow, M. ID - 5848 IS - 3 JF - WIRTSCHAFTSINFORMATIK TI - Vergleichsmöglichkeiten für Finanzdienstleistungsangebote im WWW VL - 43 ER - TY - JOUR AU - Kundisch, Dennis AU - Wolfersberger, P. AU - Klöpfer, E. ID - 5849 IS - 2 JF - The International Journal on Media Management TI - Enabling eCCRM: Multi-Channel Model and Management for Financial eServices VL - 3 ER - TY - CONF AU - Kundisch, Dennis AU - Wolfersberger, P. AU - Calaminus, D. AU - Klöpfer, E. ED - Sprague, R. H. ID - 6010 T2 - Proceedings of the 34th Hawaii International Conference on System Sciences (HICSS) TI - Enabling eCCRM: Content Model and Management for Financial eServices VL - 7 ER - TY - CONF AU - Kundisch, Dennis AU - Schell, A. ED - Graham, P. ED - Maheswaran, M. ED - Eskicioglu, M. R. ID - 6011 T2 - Proceedings of the International Conference on Internet Computing 2001 (IC) TI - Mobile Pricing for Congested UMTS Networks VL - 1 ER - TY - CHAP AU - Kabst, Rüdiger ED - Bellman, Lutz ED - Minssen, Heiner ED - Wagenr, Petra ID - 6219 T2 - Personalwirtschaft und Organisationskonzepte moderner Betriebe, Beiträge zur Arbeitsmarkt- und Berufsforschung, BeitrAB 252 TI - Kurzlebige Moden oder dominierende Arbeitsgebiete?: Personalpraktiken zwischen Wiedervereinigung und Jahrtausendwechsel ER - TY - GEN AU - Kabst, Rüdiger ID - 6395 TI - Erfolgsfaktoren der Internationalisierung mittelständischer Unternehmen: Internationalisierungsverlauf und Expatriate Management, Paderborn 2001 ER - TY - GEN AU - Weber, W AU - Kabst, Rüdiger ID - 6396 TI - Personalmanagement im internationalen Vergleich: The Cranfield Project on International Strategic Human Resource Management - Ergebnisbericht 2000, Paderborn 2001 ER - TY - JOUR AU - Beran, Jan AU - Feng, Yuanhua ID - 4653 JF - Statistical Review (Revista de Estatistica) TI - A semiparametric fractional autoregressive model VL - 2 ER - TY - GEN AU - Beran, Jan AU - Feng, Yuanhua ID - 4662 TI - Supplement to the paper "Iterative plug-in algorithms for SEMIFAR models - definition, convergence and asymptotic properties" - Detailed simulation results ER - TY - JOUR AU - Fahr, Rene ID - 4912 JF - Statistisches Bundesamt (Hrsg.), Spektrum Bundesstatistik TI - Gibt es eine Nachfrage nach produktiver Freizeit ER - TY - BOOK ED - Kremer, H.-Hugo ED - Sloane, Peter F. E. ID - 7319 TI - Konstruktion, Implementation und Evaluation komplexer Lehr- Lernarrangements - Fallbeispiele aus Deutschland, Niederlande und Österreich im Vergleich ER - TY - BOOK ED - Kremer, H.-Hugo ED - Sloane, Peter F. E. ID - 7321 TI - Lernfelder implementieren. Zur Entwicklung und Gestaltung fächer- und lernortübergreifender Lehr-Lernarrangements im Lernfeldkonzept ER - TY - BOOK ED - Kennerknecht, M. ED - Kremer, H.-Hugo ED - Sloane, Peter F. E. ID - 7322 TI - Planspiel zur Messebeteiligung. Zur Gestaltung von Lernsituationen im Lernfeldkonzept ER - TY - JOUR AU - Padberg, Julia AU - Jansen, Lars AU - Ehrig, Hartmut AU - Schnieder, E. AU - Heckel, Reiko ID - 7391 IS - 1 JF - Transactions of the Society for Design and Process Science TI - Cooperability in Train Control Systems: Specification of Scenarios using Open Nets VL - 5 ER - TY - JOUR AU - Heckel, Reiko AU - Ehrig, Hartmut AU - Wolter, Uwe AU - Corradini, Andrea ID - 7392 IS - 1 JF - Applied Categorical Structures TI - Double Pullback Transitions and Coalgebraic Loose Semantics for Graph Transformation Systems VL - 9 ER - TY - JOUR AB - In this paper, we perform such an analysis and identify requirements for a general role concept. We develop such a role concept for a modeling approach based on the UML and graph transformation systems and exemplify its use for the specification (and application) of protocols. Finally, we provide a run-time semantics for roles based on concepts from the theory of graph transformation. AU - Depke, Ralph AU - Heckel, Reiko AU - Küster, Jochen ID - 7393 IS - 3 JF - International Journal of Software Engineering and Knowledge Engineering TI - Roles in Agent-Oriented Modeling VL - 11 ER - TY - JOUR AU - Corradini, Andrea AU - Große-Rhode, Martin AU - Heckel, Reiko ID - 7394 IS - 1-2 JF - Theoretical Computer Science TI - A Coalgebraic presentation of structured transition systems VL - 260 ER - TY - JOUR AB - Wie in allen technischen Geräten werden auch im Automobil immer mehr Funktionen durch Softwaresysteme realisiert bzw. gesteuert. Bei einer Entwicklung derartiger Softwaresysteme wird im Rahmen eines ingenieurmäßigen Entwicklungsprozesses zunächst ein Modell erstellt. Hierzu muss eine Modellierungssprache zur Verfügung stehen, die den Modellierer adäquat bei der Erstellung des Modells unterstützt und ein einheitliches Verständnis des Modells ermöglicht. AU - Engels, Gregor AU - Gaulke, Jens AU - Sauer, Stefan ID - 7395 JF - Forschungsforum Paderborn TI - Modelle für automobile Software - Objektorientierte Modellierung von eingebetteten, interaktiven Softwaresystemen im Automobil VL - 4 ER - TY - CHAP AU - Bliemel, F AU - Eggert, A ED - Schögel, M ED - Tomczak, T ED - Belz, C ID - 7462 T2 - Roadm@p to E-Business TI - Kundenbindung mit Electronic Commerce ER - TY - CHAP AU - Kremer, H.-Hugo AU - Sloane, Peter F. E. ED - Hohenstein, A. ED - Wilbers, K. ID - 7464 T2 - Handbuch E-Learning: Expertenwissen aus Wissenschaft und Praxis, Grundwerk Dezember 2001 TI - Virtuelle Seminare gestalten ER - TY - JOUR AU - Dilger, B. AU - Kremer, H.-Hugo AU - Sloane, Peter F. E. ID - 7466 IS - 9 JF - Wirtschaft und Erziehung TI - Wissensforum als Instrument der Lernortkooperation ER - TY - CHAP AU - Kremer, H.-Hugo AU - Sloane, Peter F. E. ED - Reinisch, H. ED - Bader, R. ED - Straka, G. A. ID - 7469 T2 - Modernisierung der Berufsbildung in Europa. Neue Befunde der berufs- und wirtschaftspädagogischen Forschung TI - Lehrerrolle und Lernfeldkonzept ER - TY - CHAP AU - Kremer, H.-Hugo AU - Sloane, Peter F. E. ED - Kremer, H.-H. ED - Sloane, P. F. E. ID - 7473 T2 - Konstruktion, Implementation und Evaluation komplexer Lehr-Lernarrangements - Fallbeispiele aus Deutschland, Niederlande und Österreich im Vergleich TI - Vorbemerkungen ER -