Where do operations come from? A multiparadigm specification technique

Proposes a technique to help people organize and write complex specifications, exploiting the best features of several different specification languages. Z is supplemented, primarily with automata and grammars, to provide a rigorous and systematic mapping from input stimuli to convenient operations and arguments for the Z specification. Consistency analysis of the resulting specification is based on the structural rules. The technique is illustrated by two examples, a graphical human-computer interface and a telecommunications system