The last few years have borne witness to a remarkablediversity of formal methods, with applications to sequentialand concurrent software, to real-time and reactive systems,and to hardware design. In that time, many theoreticalproblems have been tackled and solved, and many continue tobe worked upon. Yet it is by the suitability of theirindustrial application and the extent of their usage thatformal methods will ultimately be judged. This volume presents the proceedings of the firstinternational symposium of Formal Methods Europe, FME'93. The symposium focuses on the application ofindustrial-strength formal methods. Authors address thedifficulties of scaling their techniques up toindustrial-sized problems, and their suitability in theworkplace, and discuss techniques that are formal (thatis, they have a mathematical basis) and that areindustrially applicable. The volume has four parts:- Invited lectures, containing a lecture by Cliff B. Jonesand a lecture by Antonio Cau and Willem-Paul de Roever;- Industrial usage reports, containing 6 reports;- Papers, containing 32 selected and refereedpapers;- Tool descriptions, containing 11 descriptions.