http://dl.gi.de/handle/20.500.12116/3440 2026-07-23T22:14:32Z 2026-07-23T22:14:32Z Aier, Stephan Schelp, Joachim http://dl.gi.de/handle/20.500.12116/3533 2017-10-10T20:55:06Z 2010-01-01T00:00:00Z

How to Preserve Agility in Service Oriented Architectures - An Explorative Analysis Aier, Stephan; Schelp, Joachim Although companies introduced enterprise application integration (EAI) a couple of years ago, the complexity of corporate application landscapes is ever increasing. The current wave of technology being introduced into these application landscapes are service oriented architectures (SOA). Not unlike EAI before the introduction of these technologies is associated with re-use of software components and reaping cost cutting potentials. But when looking at the still increasing complexity of application landscapes following the introduction of SOA, the re-use and cost cutting arguments lead to disappointment. However, SOA offers a great potential to increase corporate agility. In order to gain and preserve corporate agility it is necessary to explicitly manage enterprise architecture. This paper discusses the problems of re-use and cost cutting expectations in SOA and contrasts them with the potentials related to make sustainable contributions to corporate agility. Structures, processes, and instruments to realise these potentials are discussed with reference to a literature review as well as to selected case studies.

2010-01-01T00:00:00Z Ackermann, Jörg Turowski, Klaus http://dl.gi.de/handle/20.500.12116/3534 2017-10-10T20:55:07Z 2010-01-01T00:00:00Z

Domain Level Specification of Parameterisable Business Components Ackermann, Jörg; Turowski, Klaus Combining software components from different vendors to customer-individual business application systems requires sophisticated techniques to specify the components. If a component can be parameterised, its parameterisation properties must be included in the specification. That is the topic of an ongoing research project. This paper discusses how parameterisation issues can be specified on domain level – that is how to describe parameterisable business terms and business tasks as well as parameterisation effects for a functional expert.

2010-01-01T00:00:00Z Reichert, Manfred Bassil, Sarita Bobrik, Ralph Bauer, Thomas http://dl.gi.de/handle/20.500.12116/3526 2017-10-10T20:55:06Z 2010-01-01T00:00:00Z

The Proviado Access Control Model for Business Process Monitoring Components Reichert, Manfred; Bassil, Sarita; Bobrik, Ralph; Bauer, Thomas Integrated process support is highly desirable in environments where data related to a particular business process are scattered over distributed, heterogeneous information systems. A business process monitoring component is a much-needed module in order to provide an integrated view on all these process data. Regarding process visualisation and process data integration, access control (AC) issues are very important but also quite complex to be addressed. A major problem arises from the fact that the involved information systems are usually based on heterogeneous AC components. For several reasons, the only feasible way to tackle the problem of AC at the process monitoring level is to define access rights for the process monitoring component, hence getting rid of the burden to map access rights from the information system level. This paper presents the Proviado process visualisation framework and discusses requirements for AC in process monitoring, which we derived from our case studies in the automotive domain. It then presents alternative approaches for AC: the view-based and the object-based approach. The latter is retained, and a core AC model is proposed for the definition of access rights that meet the derived requirements. AC mechanisms provided within the core model are key ingredients for the definition of model extensions.

2010-01-01T00:00:00Z Delfmann, Patrick Herwig, Sebastian Lis, Łukasz Stein, Armin Tent, Katrin Becker, Jörg http://dl.gi.de/handle/20.500.12116/3524 2017-10-10T20:55:06Z 2010-01-01T00:00:00Z

Pattern Specification and Matching in Conceptual Models - A Generic Approach Based on Set Operations Delfmann, Patrick; Herwig, Sebastian; Lis, Łukasz; Stein, Armin; Tent, Katrin; Becker, Jörg Searching for patterns in conceptual models is useful for a number of purposes, for example revealing syntactical errors, model comparison, and identification of business process improvement potentials. In this contribution, we introduce a formal approach for the specification and matching of structural patterns in conceptual models. Unlike existing approaches, we do not focus on a certain application problem or a specific modelling language. Instead, our approach is generic making it applicable for any pattern matching purpose and most conceptual modelling languages. In order to build sets representing structural model patterns, we define formal operations based on set theory, which can be applied to arbitrary models represented by sets. The basic sets represent the model elements, which in turn originate from the modelling language specification’s instances. Besides a conceptual and formal specification of our approach, we present particular application examples and a prototypical modelling tool showing its general applicability.

2010-01-01T00:00:00Z