Books by John Derrick

It (1) introduces the reader to different ways of looking at refinement, relating refinement to observations(2) shows how these are realised in different semantic models (3) shows how different formal methods use different models of refinement, and (4) how these models of refinement are related.

This book covers data refinement and its application to Z; generalisations of refinement that change the interface and atomicity of operations; refinement in Object-Z; and modelling state and behaviour by combining Object-Z with CSP.