Conceptual Modeling of Complex Systems via Object Process Methodology
Date Published: 2009-04-20
Paper Number:2009-01-0524
DOI: 10.4271/2009-01-0524
Citation:
Ahmed, A. and Dori, D., "Conceptual Modeling of Complex Systems via Object Process Methodology," SAE Int. J. Passeng. Cars - Electron. Electr. Syst. 2(1):171-176, 2009, doi:10.4271/2009-01-0524.
Author(s):
Ammar Ahmed - Massachusetts Institute of Technology
Dov Dori - Massachusetts Institute of Technology
Knowledge mapping is a first and mandatory step in creation of system architecture. This paper considers the conceptual modeling of automotive systems, and discusses the creation of a knowledge-based model with respect to the Object Process Methodology an approach used in designing intelligent systems by depicting them using object models and process models. With this knowledge, systems engineer should consider what a product is comprised of (its structure), how it operates (its dynamics), and how it interacts with the environment. As systems have become more complex, a prevalent problem in systems development has been the number of accruing errors. A clearly defined and consistent mapping of knowledge regarding structure, operation and interaction is necessary to construct an effective and useful system. An interactive, iterative and consistent method is needed to cope with this complex and circular problem.
In this paper, the Object-Process Methodology (OPM) approach is considered, along with OPCAT, a tool for OPM-based knowledge modeling. OPM is a systems-modeling approach that represents knowledge about systems concurrently and bi-modally through graphics (a set of Object-Process Diagrams, OPDs) and text (Object-Process Language, OPL, a subset of English), yielding a single, unified and consistent view. In this paper we propose a foundational modeling and conceptual construction approach for Antilock Braking System a complex automotive system that incorporates electrical, mechanical and software components
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