Otto K. Ferstl

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A business application system is considered distributed if the execution of its tasks is split into multiple concurrent processes, running on multiple processors as task bearers. We look at the distribution of tasks from an application domain viewpoint which focuses on objectives of distribution such as total quality and integration of business application(More)
Business processes play an important role in analyzing and designing a company's behaviour and organization. Modeling business processes is an integral part of the Semantic Object Model (SOM). The paper shows the basic concepts of business process modeling using the SOM approach and presents the design goals and architecture of an accompanying tool. 1.(More)
Simulation models are important instruments for analysing business systems. They are classified into time-discrete and time-continuous simulation models, for example Discrete Event Systems (DEVS) or System Dynamics (SD) models. These special models are particularly suitable to analyse subsystems of a business system with either time-discrete or(More)
Business-to-business processes require an inter-company integration of the application systems supporting these business processes. Integration is based on inter-company couplings of application systems, which are specified in coupling architectures. The necessity of coupling of application systems arises from relationships between business tasks which are(More)