This book constitutes the refereed proceedings of the Second International Symposium on Object Technologies for Advanced Software, ISOTAS'96, held in Ishikawa, Japan, in March 1996. ISOTAS'96 was sponsored by renowned Japanese and international professional organisations.The 14 papers included in final full versions, together with the abstracts of four invited papers, were carefully reviewed and selected from a total of 56 submissions; they address most current topics in object software technology, object-oriented programming, object-oriented databases, etc. The volume is organized in sections on design and evolution, parallelism and distribution, meta and reflection, and evolution of reuse.