Feedback Handling in Dynamic Task Nets

Carl-Arndt Krapp, Bernhard Westfechtel

           While a software process is being executed, many errors
           and problems occur which require to reconsider previously
           executed process steps. In order to handle feedback in
           a process-centered software engineering environment,
           several requirements need to be addressed (adaptability,
           human intervention, impact analysis, change propagation,
           restoration of the work context, and traceability). Feedback
           management in DYNAMITE meets these requirements. DYNAMITE is
           based on dynamic task nets and specifically supports feedback
           through feedback relations, task versions, and customized
           semantics of data flows.  A methodology for feedback handling
           is also represented.  A programmed graph rewriting system
           serves to specify analysis, planning, and enactment - which
           may be interleaved seamlessly - in a uniform formal framework.