This book presents the proceedings of the Ada-Europe International Conference held in Dublin, June 1990. These meetings constitute the most significant events in this field within Europe, and attract delegates from around the world. This year's conference takes as its theme the impact of technical and management issues in the software engineering economics of Ada, as well as technology transfer and training. With the start of a new decade in which Ada comes of age both in terms of use and acceptability, papers also assess the impact of Ada through descriptions of projects in which Ada has been used throughout their life cycle. Discussion of topical issues affecting the development of Ada-9X is also presented.