This book constitutes the proceedings of the 4th International Workshop on Cooperation and Interoperability, Architecture and Ontology, CIAO!, and the 4th International Workshop on Enterprise and Organizational Modeling and Simulation, EOMAS, held at CAiSE 2008 in Montpellier, France, in June 2008.

The 13 papers presented here were carefully selected for inclusion in this book. The scopes of these two workshops are to a large extent complementary, with CIAO! being more focused on the theory and application of enterprise engineering and EOMAS on the methods and tools for modeling and simulation.

The papers cover the topics of process modeling, collaboration and interoperability, enterprise architecture, and model transformation and simulation.

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The expectation for the future of the 21st century enterprise is complexity and agility. In this digital age, business processes are scattered not only throu- out the labyrinth of their own enterprises, but also across di?erent enterprises, and even beyond the national boundaries. An evidence of this is the gr- ing phenomenon of business process outsourcing. Increasing competition, higher customer demands, and emerging technologies require swift adaptation to the changes. To understand, design, and engineer a modern enterprise (or an enterprise network) and its interwoven business processes, an engineering and systematic approach based on sound and rigorous theories and methodologies is necessary. Along with that, a paradigmshift seems to be needed for addressing these issues adequately. An appealing candidate is to look at an enterprise and its business processes as a social system. In its social setting, an enterprise and its bu- ness processes represent actors with certain authorities and assigned roles, who assume certain responsibilities in order to provide a service to its environment. The need for this paradigm shift along with the complexity and agility of modern enterprises, gives inspiration for the emerging discipline of Enterprise Engineering. For the study of this socio-technical phenomenon, the prominent tools ofModeling andSimulation play a signi?cant role.Both (conceptual) m- eling and simulationare widely used for understanding,analyzing,andengine- ing an enterprise (its organization and business processes).

Contenu

Process Modeling.- On the Nature of Business Rules.- Process Flexibility: A Survey of Contemporary Approaches.- Subsuming the BPM Life Cycle in an Ontological Framework of Designing.- Information Gathering for Semantic Service Discovery and Composition in Business Process Modeling.- Collaboration and Interoperability.- Challenges in Collaborative Modeling: A Literature Review.- A Petri-Net Based Formalisation of Interaction Protocols Applied to Business Process Integration.- Enterprise Architecture.- Competencies and Responsibilities of Enterprise Architects.- Interoperability Strategies for Business Agility.- Towards a Business-Oriented Specification for Services.- Model Transformation and Simulation.- Automated Model Transformations Using the C.C Language.- Improvement in the Translation Process from Natural Language to System Dynamics Models.- Developing a Simulation Model Using a SPEM-Based Process Model and Analytical Models.- Formal Modeling and Discrete-Time Analysis of BPEL Web Services.