Algorithm optimization of checking atomicity-equivalent public view

Service-oriented Architecture (SOA) is a novel software engineering methodology of the internet era for developing distributed application. Different organizations and service providers develop their own web services independently and the service consumers can put these services together to develop their applications. Background processes are often hidden by their service providers and consumer can only get limited public views. To avoid inconsistent situations, applications always need the supporting of transaction. But having ACID (atomicity, consistency, isolation, and durability) is almost impossible. Exception handling is a kind of week-consistent that can keep atomicity and the consistency of composition process at the same time. This paper materializes a method to get task signature while taking exception handler into consideration and improves the checking atomicity-equivalent public view algorithm of in the hope of lowering time complexity.