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Astract: Electronic data interchange (EDI) is the domain of exchanging business documents in a structured format. Nowadays, these systems take more and more advantage of service-oriented solutions. Nevertheless, a rigorous approach to customize the input and output messages of these services to the context of a business partnership is required. In this paper we suggest a model-driven approach to develop the XML Schemas of input and output messages of Web Services. Since classical data modeling approaches like regular UML class diagrams are not sufficient for modeling business documents, we base our approach on the UN/CEFACT Core Components Technical Specification (CCTS), which does not come with a presentation syntax. Thus, we deliver a UML profile extending class diagrams by CCTS concepts, called UML Profile for Core Components (UPCC). UPCC models are transferred to equivalent XML Schemas following well-defined naming and design rules. In order to allow for an easy search and retrieval of core component business document definitions, a registry is needed. The registry has to handle UPCC models - that are exchanged and stored in XMI - as well as their XML Schema equivalences. In this paper, we extend the ebRIM registry meta model for the special purpose of registering core component artifacts and defining their inter-dependencies.

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Astract: Integrating Semantic Web concepts into the domain of e-business is a hot topic. However, most of the efforts spent so far concentrated on the improvement on B2C (business-to-consumer) e-commerce applications, achieved by semantic enrichment of information. With the growing importance of Service Oriented Architectures (SOA) companies started to move into the section of the Electronic Data Interchange (EDI), where applications exchange their business information semi-automatically. This B2B (business-to-business) electronic commerce is driven by aligning the internal business processes of companies to publicly available business processes. Thereby companies often do not consider the economic drivers of their business processes, which leads to incompatibilities between management, administration and technical layers. This chapter covers the two major domains of e-business / e-commerce, namely B2B and B2C. In the first, a model-driven approach towards B2B IT solutions is introduced, covering semantic aspects dealing with business models, business process models, and business document models. In the second application domain, the basic concepts of Semantic Web in the area of B2C electronic commerce are examined using a representative example from the e-tourism domain.

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Astract: Conceptual languages to describe business models - not business process models - become increasingly important. One of the most expressive approaches towards business models is the Resource-Event-Agent (REA) ontology. REA has a substantial back-up in economic and accounting theory, but did lack a dedicated representation language for many years. Recently, we have introduced a domain specific modeling language including a REA meta model and a pertinent graphical notation. In this paper we build upon our previous work, but aim for a representation language that is able to serve as a serialization syntax also for other REA modeling approaches using UML class diagrams or OWL, etc. As a result we come up with REA-XML, an XML schema that allows a precise, tool-independent representation of REA models and that may also serve as an REA model exchange language between different tools.

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Astract: Huge classes with more than 800 students pose a major challenge to lecturers as well as to students, especially when a practical part is included. In order to successfully master lectures of this size, novel kinds of teaching media provide a multitude of enhanced opportunities. In this paper, we present our experiences with the application of new media in our undergraduate course Introduction to Object-Oriented Modeling (OOM). In this course, we teach approximately 800-1000 students per year the principles and techniques of UML 2.0. New media, i.e., technologies other than the traditional blackboard presentation like a document camera, web-based self assessments, or lecture recordings, are applied to support both, students and lecturers when learning and teaching, respectively. We empirically underline the acceptance of our concept with the feedback of our students concerning the newly used technologies gained through an extensive survey.