Conversations of objects

Abstract

An increasing range of application systems implemented in concurrent object oriented languages (COOLs) creates a pressing demand for developing approaches which provide a systematic way of tolerating software and hardware faults by using software diversity. This paper deals with the problem of tolerating faults in concurrent systems of this type. The purposes of this paper are as follows: to discuss the most appropriate ways of implementing conversations in COOLs; to map all attributes of conversations onto these languages; to discuss the most relevant peculiarities of COOLs in these terms; to suggest approaches to using the conversation scheme; to find the ways in which characteristics of COOLs can facilitate the use of conversation schemes. Thus we try to show how conversations can be used in existing COOLs in a more practical and realistic manner.