This volume constitutes the proceedings of the First International Eurospace/Ada-Europe Symposium, held in Copenhagen in September 1994; this symposium series is the merger of the two conference series Ada in Aerospace and Ada-Europe. The 42 papers accepted for presentation address general Ada-related software engineering aspects as well as Ada language issues; the majority of the papers are stimulated by research and development done in the aerospace and aircraft industry. Among the topics covered are compiler issues, safety, criticality and formal methods, object-orientation, management and training, life cycle, reuse, Ada-libraries, run-time, and real-time aspects.