The Australasian Refinement Workshop (ARW) series began in 1990, to provide a forum for researchers in program refinement. The New Zealand Formal Program Development Colloquium (NZFPDC) series began in 1994 with similar aims. In 1997 the ARW and NZFPDC joined forces in Wellington under the umbrella name Formal Methods Pacific (FMP). The more general name, and regional focus better reflects the broader range of interests of participants and presented papers, while satisfying the need for a regional conference covering formal methods.
The event became the International Refinement Workshop with the postponement of the 7th British Refinement Workshop, and the welcome support of IRW/FMP'98 by the British Computer Society FACS.
IRW/FMP'98 is being held concurrently with The 11th International Conference on Theorem Proving in Higher Order Logics (TPHOLs'98) at The Australian National University.
Papers for IRW/FMP'98 were sought in two streams: Completed Work and Work in Progress. The Work in Progress stream provides a forum for discussion of work that has not yet reached maturity. Submissions were vetted for relevance, but not refereed. This volume presents the Work in Progress papers.