| Caching is a simple and effective way to provide faster access to information on the Internet, and it has been used effectively to improve the performance of E-commerce servers. However, there is a growing concern by today's Web service providers to ensure that the data cached at a remote client is up to date with the current value in the server. A unique aspect of cache consistency for E-commerce applications is that most of the applications on the Web can tolerate some degree of inconsistency between the clients and the server.;In this thesis, we propose an Optimistic Web Cache Consistency algorithm which exploits the tolerance exhibited by E-commerce applications, and which is suitable for E-commerce transactions on the Internet. The optimistic algorithm relaxes consistency constraints but, at the same time, bounds the staleness of data viewed by transactions, and brings about a generalized correctness criteria for the execution of transactions on the Web. |
