<p>Scenarios offer promise as a way to tame requirements analysis, but progress has been impeded by the lack of a systematic way to analyze, generate, and validate them. The authors propose such a method and apply it to a simple PBX system. Their method has a formal mathematical base, generates precise scenarios, accommodates change, and keeps users involved in the process.</p>

formal specification; systems analysis; private telephone exchanges; telecommunications computing; telephone systems; formal verification; formal approach; scenario analysis; requirements analysis; simple PBX system; formal mathematical base; precise scenarios

Jayarajan Samuel, Pei Hsia, David Kung, Jerry Gao, Cris Chen, Yasafumi Toyoshima, "Formal Approach to Scenario Analysis", IEEE Software, vol. 11, no. , pp. 33-41, March/April 1994, doi:10.1109/52.268953