Marc Sihling

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Mobile agents gained immense attraction as a new programming concept for implementing distributed applications. However, up to now mobile agent programming has been mainly technology driven, with a focus on the implementation of mobile agent platforms and only small programming applications. In this work, we present an extension of the standard UML that(More)
We present prominent features of AUTOFOCUS, a tool prototype for the formally based development of reactive systems. AUTOFOCUS supports system development offering integrated, comprehensive and mainly graphical description techniques to specify both different views and different levels of abstraction of the system. To avoid illdefined specifications,(More)
The architecture of an IT system is of crucial importance for its success. In order to assess architecture’s fitness, a number of standardized architecture evaluation methods have been proposed. Most of them are intended for the evaluation of a single architecture at a certain point in time. Furthermore, the results are often highly dependent on the person(More)
We present a new approach to a componentware development methodology based on a system of process patterns. We argue that organizing the development process by means of a pattern system results in higher flexibility compared to traditional ways of defining development processes. This is especially important in the context of componentware. Finally, we(More)
The goal of componentware is to carry the old dream of building software systems by assembling pre-fabricated components to undreamt brilliancy. Although there is a variety of technical concepts and tools for componentoriented software engineering, the successful model from the building industry could not be transferred fully to software development yet. In(More)
In the context of componentware, there are several different strategies to adapt a given gen̄erīc component. They differ in the necessary prerequisites and the achieved quality of the resulting specific component with respect to reliability, efficiency and reusability. In this paper, we discuss a number of conceivable adaptation strategies for components,(More)
We outline and clarify the essential concepts of the componentware paradigm. After motivating the role of formal foundations and introducing a number of useful description techniques, we propose a flexible process model for component-based development based on process patterns. The presented techniques and concepts serve as building blocks of an overall(More)
In this paper, we outline and clarify our view of the essential concepts of componentware, focusing on the role of formal foundations in the context of an overall development methodology. We provide a formal system model which allows for clear deenitions of concepts like, for instance, component, interface, connection, aggregation, and reenement. While(More)