Value-Based Requirements Traceability: Lessons Learned

Software development standards demand requirements traceability without being explicit about the appropriate level of quality of trace links. Unfortunately, long-term trace utilizations are typically unknown at the time of trace acquisition which represents a dilemma for many companies. This paper suggests ways to balance the cost and benefits of requirements traceability. We present data from 3 case studies. Lessons learned suggest a traceability strategy that (1) provides trace links more quickly, (2) refines trace links according to user-definable value considerations, and (3) supports the later refinement of trace links in case the initial value considerations change.