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Service-oriented systems are distributed systems which have the major advantage of enabling rapid composition of distributed applications, regardless of the programming languages and platforms used in developing and running different components of the applications. In these systems, various capabilities are provided by different organizations as services interconnected by various types of networks. The services can be integrated following a specific workflow to achieve a mission goal for users. For large-scale service-based systems involving multiple organizations, high confidence and adaptability are of prime concern in order to ensure that users can use these systems anywhere, anytime with various devices, knowing that their confidentiality and privacy are well protected and the systems will adapt to satisfy their needs in various situations. Hence, these systems must be adaptable, situation-aware and secure. In this paper, an approach to rapid development of adaptable situation-aware secure service-based (AS3) systems is presented. Our approach enables users to rapidly generate, discover, compose services into processes to achieve their goals based on the situation and adapt these processes when situation changes.
Date of Conference: 18-20 May 2005