This book constitutes the thoroughly refereed post-proceedings of the 7th International Workshop on Design, Specification and Verification of Interactive Systems, DSV-IS 2000, held in Limerick, Ireland in June 2000. The 14 revised full papers presented were carefully reviewed and selected from 30 submissions. The papers are organized in topical sections on designing interactive distributed systems, designing user interfaces, tools for user interfaces, formal methods for human-computer interaction, and model-based design of interactive systems.