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Astract: In the development process of a B2B system it is crucial that the business experts are able to express and evaluate agreements and commitments between the partners and that the software engineers get all necessary information to bind the private process interfaces to the public ones. UN/CEFACT's modeling methodology (UMM) is a UML profile for developing B2B processes. The formalisms introduced by UMM's stereotypes facilitate the communication with the software engineers. However, business experts - who usually have a very limited understanding of UML - prefer expressing their thoughts and evaluating the results by plain text descriptions. In this paper we describe an approach that presents an equivalent of the UMM stereotypes and tagged values in text-based templates called worksheets. This strong alignment allows an integration into a UMM modeling tool and ensures consistency. We show how a specially designed XML-based worksheet definition language allows customization to special needs of certain business domains. Furthermore, we demonstrate how information kept in worksheets may be used for the semi-automatic generation of pattern-based UMM artifacts.

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Astract: The tighter coupling of enterprises in regard to information system technology has also changed the way business processes are modeled. Modeling interorganizational business processes is necessary in order to gain a profound and unique representation of the processes involved. However this requires a new methodology especially designed for modeling inter-organizational business processes. The United Nation´s Center for Trade Facilitation and Electronic Business (UN/CEFACT) took up the challenge and started to develop such a methodology. The research efforts became known as UN/CEFACT´s modeling methodology (UMM) [1]. UMM enables the business modeler to capture the business knowledge independent of the underlying implementation technology such as ebXML or Web Services. Due to the popularity of the Unified Modeling Language (UML) the UMM is built on top of it. UMM is defined as a UML profile - i.e. a set of stereotypes, tagged values and constraints - in order to customize the UML meta model for the specific purpose of modeling the collaborative space in B2B. Although the standard is well developed and documented, its complexity and mightiness make it difficult for the novice user to perceive from scratch. Therefore a tool, supporting themodeler in creating a validUMMmodel would help those inexperienced with UMM.We have developed such a plug-in for the UML modeling tool Enterprise Architect 1 called UMM Add-In 2.We highlight the main features of the Add-In and show how the tool facilitates the use of the methodology.

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Astract: UN/CEFACT´s modeling methodology (UMM) is used to develop global choreographies of inter-organizational business processes. UMM models should be publically available in order to foster re-use and to reference them in trading partner agreements. In this paper we define a mapping of UMM models or parts thereof to the ebXML registry information model (RIM).

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Astract: The exchange of models among different modeling tools ever more becomes an important prerequisite for effective software development processes. Due to a lack of interoperability, however, it is often difficult to use tools in combination, thus the potential of model-driven software development cannot be fully exploited. This paper proposes ModelCVS, a system which enables tool integration through transparent transformation of models between different tools´ modeling languages expressed as MOF-based metamodels. ModelCVS provides versioning capabilities exploiting the rich syntax and semantics of models. Concurrent development is enabled by storing and versioning software artifacts that clients can access by a check-in/check-out mechanism, similar to a traditional CVS server. Semantic technologies in terms of ontologies are used together with a knowledge base to store machine- readable, tool integration relevant information, thus allowing to minimize repetitive effort and partly automate the integration process.

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Astract: Due to company mergers and business to business interoperability, there is a need for model transformations in the area of business process modeling to facilitate scenarios like model integration and model synchronization. General model transformation approaches do not consider the special properties of business process models and horizontal transformation scenarios. Therefore, we propose a model transformation approach based on domainspecific patterns which are applied for analyzing business process models in a precise way. This approach facilitates the definition of business process model transformations, which can be easily adapted to different business process modeling languages and specific transformation problems. At the same time it supports the intuitive understanding of the domainexperts in business process modeling.

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Astract: UN/CEFACT´s Modeling Methodology (UMM) is a well accepted approach to define inter-organizational business processes. UMM models should be managed in a registry for two reasons: Firstly, business partners supporting the process can find it and bind to it. Secondly, a model - or more important parts thereof - may be reused in another model of an inter-organizational process. Accordingly, registering one model as one object in a registry is not appropriate. Those parts of a model that may be reused must become registry objects themselves. Extracting parts of a model results in objects that are logically inter-related. Thus, a registry model taking care of these inter-relationships is needed. In this paper we present a so-called business collaboration registry model that sits on top of the ebRIM (ebXML registry information model) in order to manage UMM business collaboration models in an ebXML registry. Furthermore, we outline the registry management functions for maintaining models in the registry.