Using Penelope To Assess The Correctness Of Nasa Ada Software

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723479946
Total Pages : 166 pages
Book Rating : 4.4/5 (799 download)

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Download or read book Using Penelope to Assess the Correctness of NASA ADA Software written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-23 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life-critical applications warrant a higher level of software reliability than has yet been achieved. Since it is not certain that traditional methods alone can provide the required ultra reliability, new methods should be examined as supplements or replacements. This paper describes a mathematical counterpart to the traditional process of empirical testing. ORA's Penelope verification system is demonstrated as a tool for evaluating the correctness of Ada software. Grady Booch's Ada calendar utility package, obtained through NASA, was specified in the Larch/Ada language. Formal verification in the Penelope environment established that many of the package's subprograms met their specifications. In other subprograms, failed attempts at verification revealed several errors that had escaped detection by testing. Eichenlaub, Carl T. and Harper, C. Douglas and Hird, Geoffrey Unspecified Center ADA (PROGRAMMING LANGUAGE); COMPUTER PROGRAMS; PROGRAM VERIFICATION (COMPUTERS); RELIABILITY ANALYSIS; RELIABILITY ENGINEERING; SAFETY; SOFTWARE ENGINEERING; SOFTWARE RELIABILITY; ERROR ANALYSIS; SPECIFICATIONS; SYSTEM FAILURES...