This volume contains the proceedings of the twelfth Ada-Europe conference, held in France in 1993. The French name "Ada sans fronti res" (the only French words in the book) symbolizes the unlimitedness and novelty of Ada, as well as Europe-wide interest. Many papers relate to Ada-9X, the new standard that the Ada coimmunity is close to achieving after worldwide consultation and debate about requirements, specification, anddetailed definition. Their focus is on management, real-time, and compiler validation. Part of the conference was on object orientation, together with various issues relating to the general structure of the language, including exceptions to a certain use of genericity and heterogeneous data, efficiency, formal requirements and CASEs, and comparison with a competitor language. A third part relates to real-time, past with performance measurement, present with certification andapplications, and future with the ExTRA project and 9X.

This book presents the refereed proceedings of the 1998 Ada-Europe International Conference on Reliable Software Technologies, Ada-Europe'98, held in Uppsala, Sweden, in June 1998. The 23 revised full papers presented together with two invited contributions were carefully selected by the program committee. The papers address all current aspects of the Ada programming language; they are organized in sections on Ada 95 and Java, Ada 95 language and tools, distributed systems, real-time systems, case studies and experiments, software quality, software development, software architectures, and high integrity systems.

This book constitutes the refereed proceedings of the 1997 Ada-Europe International Conference on Reliable Software Technologies, held in London, UK, in June 1997. The 25 revised full papers presented were carefully selected for inclusion by the program committee. All current issues explored in the Ada community are addressed; beyond the Ada language aspects, software engineering technologies for reliable and for reactive systems are discussed in a more general context.

Parallel processing offers a solution to the problem of providing the processing power necessary to help understand and master the complexity of natural phenomena and engineering structures. By taking several basic processing devices and connecting them together the potential exists of achieving a performance many times that of an individual device. However, building parallel application programs is today recognized as a highly complex activity requiring specialist skills and in-depth knowledge. PARLE is an international, European based conference which focuses on the parallel processing subdomain of informatics and information technology. It is intended to become THE European forum for interchange between experts in the parallel processing domain and to attract both industrial and academic participants with a technical programme designedto provide a balance between theory and practice. This volume contains the proceedings of PARLE '93. The PARLE conference came into existence in 1987 as an initiative from the ESPRIT I programme and the format was revised in 1991/92. PARLE '93 is the second conference with the new format and was held in Munich.

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.