Animating Z Using Logic Programming Techniques

One method for detecting errors in a formal specification is animation. It is complementary to theorem proving and can be highly cost-effective, particularly earlier in development. In my talk I’ll discuss animation of the specification notation Z. I’ll argue that: 1. it is desirable to perform analysis prior to execution; 2. logic programming languages are an attractive target for animations of Z; 3. mode analysis can help bridge the gap between Z and Mercury. The details of a mode analysis algorithm will be presented. Animation? Automatically deriving prototypes from specifications. Exploration: more general than execution. Iterative construction of mathematical models Early feedback – useful for verification Prototype can be demonstrated – useful for validation More accessable to developers (lightweight) Complementary to theorem proving 1