http://dl.gi.de/handle/20.500.12116/23478 Wed, 22 Jul 2026 23:38:24 GMT 2026-07-22T23:38:24Z http://dl.gi.de:80/bitstream/id/62fb8e01-234c-489f-90f8-7223d9bb670f/ http://dl.gi.de/handle/20.500.12116/23478 http://dl.gi.de/handle/20.500.12116/23491 Challenges and Solutions in Planning Information Systems for Networked Value Constellations Zarvić, Novica; Daneva, Maya Weske, Mathias; Nüttgens, Markus Nowadays businesses often decide to form networked value constellations in order to satisfy complex customer needs. To fulfill the value-based requirements of an e-Business idea and to realize the coordination of such a multi-actor network an adequate underlying information systems architecture has to be conceptualized. This paper discusses the applicability of classical information system planning approaches, such as Information Engineering to cross-organizational settings expressed through value-based requirements. On the basis of this analysis several requirements for the enhancement and adaptation of Information Engineering-like methodologies for e-Business ideas are defined for the purpose of enabling alignment between a value- based business context and the information systems architecture in a networked environment. The paper proposes a way to derive data-orientation from value-orientation, i.e. an enterprise model from a value model. This in turn enables afterwards the straightforward use of traditional data-oriented techniques for value-based business models. Sun, 01 Jan 2006 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/23491 2006-01-01T00:00:00Z http://dl.gi.de/handle/20.500.12116/23490 Implementing a Service-Oriented Architecture for Small and Medium Organisations Bauler, Pascal; Feltz, Fernand; Biri, Nicolas; Pinheiro, Philippe Weske, Mathias; Nüttgens, Markus This paper explains how we have designed a service-oriented architecture by combining and extending several open source environments. We show how the IT architecture of the National Family Benefits Fund in Luxembourg got systematically modernized by solving issues related to Enterprise Application Integration, before introducing concepts like Enterprise Service Bus which was extended to offer service orchestration and business workflow support. By taking advantage of Model Driven Software Design and by introducing a framework for adding new components to the service bus, technical burdens to get used to the new IT environment got minimized. The cost saving due to the open source subsystems and the ease of use make the proposed architecture particularly interesting for small and medium organizations. Sun, 01 Jan 2006 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/23490 2006-01-01T00:00:00Z http://dl.gi.de/handle/20.500.12116/23481 A Business Process-centered Approach for Modeling Enterprise Architectures Schreiter, Torben; Laures, Guido Weske, Mathias; Nüttgens, Markus Mastering an Enterprise Architecture is crucial for the entire enterprise to operate most efficiently. However, there is a lack of appropriate means to appropriately visualize and communicate traceability from business processes to other enterprise architectural entities such as e.g. the supporting IT infrastructure. Therefore, systematic in-depth analysis of the entire Enterprise Architecture is barely feasible. This paper aims to introduce a semi-formal and business process-centered modeling approach for capturing complex Enterprise Architectures based on the well- established modeling techniques BPMN (Business Process Modeling Notation) and UML (Unified Modeling Language). A meta model formalizing the approach is presented. It is feasible to apply customizable views tailored to stakeholder-specific concerns providing standardized levels of abstraction to the model in order to improve communication of the big picture of an Enterprise Architecture. A case study illustrates the approach. Sun, 01 Jan 2006 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/23481 2006-01-01T00:00:00Z http://dl.gi.de/handle/20.500.12116/23479 A Unified Formal Foundation for Service Oriented Architectures Puhlmann, Frank Weske, Mathias; Nüttgens, Markus This paper summarizes how an algebra for mobile systems, the π-calculus, can be applied as unified formal foundation to service oriented architectures (SOA). The concepts accounted are orchestrations including data and processes, as well as choreographies consisting of interacting processes. Since SOAs incorporate agile binding of interaction partners, static process structures as found in Petri nets are not sufficient for completely representing orchestrations and choreographies. The π-calculus, in contrast, inherently supports link passing mobility required for agile interacting processes. Sun, 01 Jan 2006 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/23479 2006-01-01T00:00:00Z