This book constitutes the refereed proceedings of the 10th International Conference of Z Users, ZUM'97, held in Reading, UK, in April 1997.The volume presents 18 revised full papers together with three invited presentations by internationally leading experts.

Formal methods: A panacea or academic poppycock?.- An introduction to the event calculus.- Experiences with PiZA, an Animator for Z.- Automating test case generation from Z specifications with Isabelle.- The Z/EVES system.- Taking Z seriously.- A formal OO method inspired by Fusion and Object-Z.- W Reconstructed.- Using the rippling heuristic in set membership proofs.- A practical method for rigorously controllable hardware design.- Integrating VDM++ and real-time system design.- An approach to the design of distributed systems with B AMN.- Specifying reactive systems in B AMN.- An improved recipe for specifying reactive systems in Z.- A Z specification of the soft-link hypertext model.- Experience with Z developing a control program for a radiation therapy machine.- Preliminary evaluation of a formal approach to user interface specification.- Analyzing and refining an architectural style.- Weak refinement in Z.- Select Z bibliography.- Comp.specification.z and Z FORUM frequently asked questions.