Accession Number : ADA263318


Title :   Space Shuttle: NASA Should Implement Independent Oversight of Software Development.


Corporate Author : GENERAL ACCOUNTING OFFICE WASHINGTON DC INFORMATION MANAGEMENT AND TECHNOLOGY DIV


Personal Author(s) : Beers, Ronald W ; Stillman, Rona B ; Fruitman, Michael P ; Johnson, Sherrill H ; Thompson, William H ; White, Sandra K


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a263318.pdf


Report Date : Feb 1991


Pagination or Media Count : 30


Abstract : The space shuttle is controlled largely by five on-board computer systems. Bugs in these systems' software can cause mission failure, loss of vehicle, even loss of life. Because each shuttle flight is unique, each requires changes to thousands of lines of computer code. Since fiscal year 1981, the National Aeronautics and Space Administration (NASA) has spent more than $324 million developing, testing, and implementing shuttle software to support commercial projects, scientific research, and defense missions. Software has never been reported as a major problem in shuttle operations.


Descriptors :   *COMPUTER PROGRAMS , *SPACE SHUTTLES , *DEBUGGING(COMPUTERS) , SOFTWARE ENGINEERING , SPACE MISSIONS , SPACE LAUNCHED , FAILURE(MECHANICS) , HAZARDS


Subject Categories : Computer Programming and Software
      Unmanned Spacecraft


Distribution Statement : APPROVED FOR PUBLIC RELEASE