PODS: A project on diverse software

Peter Bishop, David Esp, Mel Barnes, Peter Humphreys, Gustav Dahll, Jaakko Lahti

Research output: Contribution to journalArticleScientificpeer-review

52 Citations (Scopus)


A review of the Project on Diverse Software (PODS), a collaborative software reliability research project, is presented. The purpose of the project was to determine the effect of a number of different software development techniques on software reliability. The main objectives were to evaluate the merits of using diverse software, evaluate the specification language X-SPEX, and compare the productivity and reliability associated with high-level and low-level languages. A secondary objective was to monitor the software development process, with particular reference to the creation and detection of software faults. To achieve these objectives, an experiment was performed which simulated a normal software development process to produce three diverse programs to the same requirement. The requirement was for a reactor over-power protection (trip) system. After careful independent development and testing, the three programs were tested against each other in a special test harness to locate residual faults. The conclusions drawn from this project are discussed.
Original languageEnglish
Pages (from-to)929-940
JournalIEEE Transactions on Software Engineering
Issue number9
Publication statusPublished - 1986
MoE publication typeA1 Journal article-refereed


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