IMOM MAINTENANCE

  • High maintenance costs

    • - Maintaining two systems in different languages
    - Original software design deteriorated significantly

  • Air Force sponsored study by INEL; the study recommended:

    • - Reengineer and redesign the system
              Translated C harder to maintain than FORTRAN original
              Code produced by translator not optimized
    - Use object-oriented techniques
              Modularity, data abstraction, and process abstraction
    - Use the Ada programming language
              Ada implementation more efficient, compact (data types and structures)
              Ada support environment provides needed tools (e.g., debugger)
              Package abstraction improves program maintainability

Previous slide Contents Next slide

From the Script: SLIDE 52 - IMOM Maintenance

The Air Force determined that maintaining two systems in different languages was too costly.

As a result, they sponsored a study by INEL:

The study recommended that they reengineer and redesign the system since the code produced by the C translator was not optimized and the translated C code was actually harder to maintain than the original FORTRAN.

The study also recommended they use the Ada programming language, taking advantage of object-oriented techniques such as modularity, data abstraction, and process abstraction.