In November 1989 we organised a workshop on software re-use, inviting members of the leading research teams across Europe. In retrospect, we realise that we missed a few research teams out, but nevertheless we did have a very fruitful workshop. This book is the outcome of that meeting. Prior to the workshop, teams submitted short position papers, and at the workshop made very short presentations of these. Most of the time was spent in four parallel sessions, and the reports of these sessions are given in Chapter 2. After the workshop we invited the attendees to revise and resubmit their papers in the light of the workshop, and it is these updated papers that appear in Chapter 4 onwards. The papers are in alphabetical order of first author. To complete this text we have added an introduction to software re-use as a first chapter-this was prepared by Liesbeth Dusink. We have added a comprehensive bibliography as Chapter 3, merging the bibliographies accumulated at Delft and at Brunei. To be able to organise the workshop we were sponsored by SERC, the Software Engineering Research Centre in Utrecht, Netherlands. November 1990 Liesbeth Dusink Pat Hall Contents Ust of Contributors . . . .. . .. . .. .. . . .. . . .. . . .. . .. . .. .. .. . . .. .. .. . . . .. . . . . . . . . . . . . . . xi . . . .

This is the proceedings of the Sixth Symposium on Empirical Foundations of Information and Software Sciences (EFISS), which was held in Atlanta, Georgia, on October 19-21, 1988. The purpose of the symposia is to explore subjects and methods of scientific inquiry which are of common interest to information and software sciences, and to identify directions of research that would benefit from the mutual interaction of these two disciplines. The main theme of the sixth symposium was modeling in information and software engineering, with emphasis on methods and tools of modeling. The symposium covered topics such as models of individual and organizational users of information systems, methods of selecting appropriate types of models for a given type of users and a given type of tasks, deriving models from records of system usage, modeling system evolution, constructing user and task models for adaptive systems, and models of system architectures. This symposium was sponsored by the School of Information and Computer Science of the Georgia Institute of Technology and by the U.S. Army Institute for Research in Management Information, Communications, and Computer Sciences (AIRMICS). 17le Editors vii CONTENTS 1 I. KEYNOTE ADDRESS ............................................. .

The purpose of this book is to help create better ADA programs by identifying and detailing a set of stylistic guidelines. This guide is ideally suited for programmers and software engineers who want to create more powerful and portable applications using ADA 95.