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Signpost: Matching Program Behavior against Known Faults
November/December 2003 (vol. 20 no. 6)
pp. 84-89
Mike Andrews, Florida Institute of Technology

Modern computer programs are often composite systems, relying on numerous commercial component libraries. When a program fails, the causes of that failure will often be a complex mix of interactions between developer-written code and library code. Debugging programs of this type can be difficult as the programmer is forced to try and isolate the source of faulty behavior in multiple components from multiple sources?some of which they know well and others in which they may have no experience. Often there are large areas of code to examine and it is not always clear if the problem is due to a bug in the programmer?s code or in a dependant library.

Mike Andrews, "Signpost: Matching Program Behavior against Known Faults," IEEE Software, vol. 20, no. 6, pp. 84-89, Nov.-Dec. 2003, doi:10.1109/MS.2003.1241371
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