
69
4Chapter
Writing the
Requirements Document
Requirements Representation Approaches
Various types of techniques can be used to describe functionality in any system,
and the 2003 study that has been repeatedly referenced was intended to discover the
prevalence of various specification techniques that were used (Neill and Laplante).
Many of the findings with respect to elicitation techniques have been reported
already but not with respect to representation approaches.
Generally, there are three approaches to requirements representation: formal,
informal, and semi-formal. Requirements specifications can adhere to strictly one
or another of these ...