Wolf-Ekkehard Matzke

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The paper presents our intermediate results in ontologizing a refined formal representation of environments, events, and happenings elaborated in PSI project. This ontology is used for agent-based modeling of engineering design systems and processes. Our formal approach is inspired by discrete event calculus (DEC). In difference to DEC based on discrete(More)
One way to make engineering design effective and efficient is to make its processes flexible – i.e. self-adjusting, self-configuring, and selfoptimizing at run time. The paper presents the descriptive part of the Dynamic Engineering Design Process (DEDP) modeling framework developed in PSI1 project. The project aims to build a software tool assisting(More)
The paper presents PSI1 Meta-Ontology – an upper level lightweight descriptive model for the set of the Core ontologies of PSI Suite. While PSI Suite is an interlinked modular library of ontologies describing the domain of engineering design performance in microelectronics, PSI Meta-Ontology is more domain-independent. It is an upper-level model of stateful(More)
One way to make engineering design effective and efficient is to make its processes flexible – i.e. self-adjusting, self-configuring, and selfoptimizing at run time. This chapter presents the descriptive part of the Dynamic Engineering Design Process (DEDP) modeling framework developed in the PSI1 project. The project aims to build a software tool to assist(More)
The paper reports on the first results of the Productivity Simulation Initiative (PSI) project of Cadence Design Systems GmbH. The project addresses the problem of fine-grained modeling and simulation of dynamic engineering design processes in order to attempt to assess and to enhance their productivity. The application domain of PSI is Semiconductor and(More)
Business performance management today does not possess a rigorous and grounded engineering methodology capable of delivering reliably measured values to backing up decision making. Much more it is the art of executive gurus who listen to their backbone experience and take their decisions using intuitive and heuristic approaches. This vagueness appears to be(More)
Ontology instance migration is one of the challenges in knowledge management. It becomes even more complex in distributed settings when, for example, several autonomous agents use partial assertional knowledge in a domain that is formalized by different though semantically overlapping descriptive theories. Agents exchange instances of their ontologies when(More)
The paper presents time-related part of PSI1 theoretical framework. In comparison to other theories of time based on interval logics our approach presents the advancement by introducing fuzziness of time intervals as transition periods at beginnings and endings. It is argued that, though quite simple (discrete, linear, and anisotropic), our theoretical(More)
This paper presents our work in collecting and formalizing data about dynamic engineering design processes in microelectronics design projects. The paper reports on our experience in evaluating the design process knowledge acquisition routine by applying it to the real industrial project of Cadence Design Systems, GmbH. The methodology is based on the usage(More)