NDLI: Requirements discovery during the testing of safety-critical software

Content Provider	IEEE Xplore Digital Library
Author	Lutz, R.R. Mikulski, I.C.
Copyright Year	2003
Description	Author affiliation: Iowa State Univ., Ames, IA, USA (Lutz, R.R.)
Abstract	This paper describes the role of requirements discovery during the testing of a safety-critical software system. Analysis of problem reports generated by the integration and system testing of an embedded, safety-critical software system identified four common mechanisms for requirements discovery and resolution during testing: (1) Incomplete requirements, resolved by changes to the software, (2) Unexpected requirements interactions, resolved by changes to the operational procedures, (3) Requirements confusion by the testers, resolved by changes to the documentation, and (4) Requirements confusion by the testers, resolved by a determination that no change was needed The experience reported here confirms that requirements discovery during testing is frequently due to communication difficulties and subtle interface issues. The results also suggest that "false positive" problem reports from testing (in which the software behaves correctly but unexpectedly) provide a rich source of requirements information that can be used to reduce operational anomalies in critical systems.
Starting Page	578
Ending Page	583
File Size	252172
Page Count	6
File Format	PDF
ISBN	076951877X
ISSN	02705257
DOI	10.1109/ICSE.2003.1201240
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-05-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Software testing Software safety System testing Propulsion Software systems Documentation Laboratories Embedded software Accidents Space technology
Content Type	Text
Resource Type	Article
Subject	Software

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