Query Based Client Indexing in Client/Server Information Systems

One issue in client/server information systems is the storage of the relationships between clients and data used by these clients. In particular in scenarios that allow the caching of data on the client site, this information can be used in order to keep the global database consistent. Thus, if the data on the server are updated, it is possible to detect caches affected by the update. In a following Step it is possible either to patch or to invalidate these caches. In this study we discuss approaches that use posted queries in order to index the clients on the server site.