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2 SYSTEM THEORETIC PORTENTS OF PREDISPOSITION TO SYSTEM FAILURE
Author(s) -
Wymore A. Wayne
Publication year - 1999
Publication title -
incose international symposium
Language(s) - English
Resource type - Journals
ISSN - 2334-5837
DOI - 10.1002/j.2334-5837.1999.tb00165.x
Subject(s) - counterexample , completeness (order theory) , computer science , system requirements specification , functional requirement , reliability engineering , non functional testing , non functional requirement , systems design , software , requirements analysis , software system , software engineering , programming language , requirements management , engineering , mathematics , software construction , mathematical analysis , discrete mathematics
This paper is the first in what will be a series of papers concerned with system failure traceable to decisions taken at a level of specification above that of bioware/hardware/software components, failure ascribable to faulty requirements and architecture. The style of discourse is informal but the results are based on research in the mathematical, system theoretic foundations of systems engineering wherein rigorous mathematical structures for system requirements and designs have been established: input/output, functional, technology, performance, cost, tradeoff and system test requirements and functional, buildable and implementable system designs generated by these requirements. The results in this paper have been deduced from examples and counterexamples representing instances of the general structure of requirements and system designs. Discussed herein, is predisposition to system failure from the following sources: Completeness of problem statements. Simplification of system requirements. System functional analysis. Coupling of implementable system designs.