This paper presents an approach using derivation of a formal model to revie
w the diagram-and-text specification of an information system specification
, based on concepts from the formal and structured integrated method, SAZ.
Extraction of the formal model is outlined, and the approach is illustrated
with a simplified extract from an industrial trial, Some empirical finding
s from the trial, which reviewed a preexisting commercial specification, ar
e presented, and the general applicability of the review approach is discus
sed, Copyright (C) 2001 John Wiley & Sons, Ltd.