Abacus Programming Corporation:
Systems Engineering and Software Specialists ABACUS   AI   PROJECTS   PRESENTATION Abacus has applied AI techniques to many real-world problems.
←Previous Next→

EXDCP

The Space Shuttle on-board displays which provide the astronauts with critical real-time flight information are controlled by a program called the Display Control Program (DCP).  Because the program is highly interrupt driven from many possible sources, unusual sequences of events may occur with unexpected ("surprising") resulting display messages.  As the on-board computer system is crucial to the successful mission of the Space Shuttle, each surprising display message must be examined to determine if it is the result of a software bug, or is merely caused by an unexpected sequence of interrupts.  A thorough examination and explanation might take an expert anywhere from minutes to weeks.

To speed up the process and to codify the expertise required for examination of the software, Abacus developed an expert system, EXDCP, which deals with a subset of the overall problem.  EXDCP was developed using ESI.  The initial MuLISP prototype version consisted of 26 rules and provided a surprisingly impressive demonstration.  A later version, in GCLISP, consisted of 45 rules and included a natural language front end.  The expanded prototype containing over 200 rules was developed in ART.



The Space Shuttle Display Control Program Solution
Abacus developed the EXDCP expert system to analyze the Space Shuttle Display Control Program.

User indicates type of advice desired.
User provides information on cue.
EXDCP offers advice and suggestions.
  Presentation
     Overview


  1. AIBUS
  2. AICIM
  3. AICOURSE
  4. AIELEC
  5. AITOOLS
  6. ALSES
  7. ESI
  8. ESSGRAPH
  9. ETSS
10. EXAUDIT
11. EXCABL
12. EXDATA
13. EXDCP
14. EXDIAG
15. EXFAULT
16. EXIMU
17. EXMIS
18. EXMISSION
19. EXPANEL
20. EXPDL
21. EXRMS
22. EXTRAJ
23. EXWATCH
24. FICX
25. GDISPO
26. ISMAX
27. METAPACK
28. MMIL
29. NATLAN
30. PIRCS
31. POWERPACKS
32. RBENCH
33. REXPERT
34. SAUDIT
35. SBENCH
36. SCOTTY
37. SHELLTRADE
38. SQUAL
39. SSAI
40. TWELF
41. USER
←Previous Next→

Home | Corporate Profile | Abacus Corporate Presentation | Abacus AI Projects Presentation | Software Development | Systems Engineering & Analysis | Artificial Intelligence | Avionics Systems | Ground Systems | Computer Systems | Business Systems | Proprietary Products | Customer Support Services | New Activities | Key Management | Clients | Employment Opportunities | Site Map | Contact Us | About Us

         Abacus Programming Corporation:
Systems Engineering and Software Specialists© Copyright 2008, Abacus Programming Corporation