NDLI: Formal methods of v&v of partial specifications: an experience report

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Formal methods of v&v of partial specifications: an experience report

Content Provider	NASA Technical Reports Server (NTRS)
Author	Easterbrook, Steve Callahan, John
Copyright Year	1997
Description	This paper describes our work exploring the suitability of formal specification methods for independent verification and validation (IV&V) of software specifications for large, safety critical systems. An IV&V contractor often has to perform rapid analysis on incomplete specifications, with no control over how those specifications are represented. Lightweight formal methods show significant promise in this context, as they offer a way of uncovering major errors, without the burden of full proofs of correctness. We describe an experiment in the application of the method SCR. to testing for consistency properties of a partial model of requirements for Fault Detection Isolation and Recovery on the space station. We conclude that the insights gained from formalizing a specification is valuable, and it is the process of formalization, rather than the end product that is important. It was only necessary to build enough of the formal model to test the properties in which we were interested. Maintenance of fidelity between multiple representations of the same requirements (as they evolve) is still a problem, and deserves further study.
File Size	928854
Page Count	11
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19970007163
Archival Resource Key	ark:/13960/t8tb62297
Language	English
Publisher Date	1997-01-01
Access Restriction	Open
Subject Keyword	Computer Programming And Software Errors Fault Detection Specifications Consistency Proving Safety Space Stations Computer Programs Program Verification Computers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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