A profiling service for accessing user data. The profiling service includes a hierarchical structure of profile objects. Each profile object contains true-data attributes and meta-data attributes associated to the true-data attributes. Methods in the profiling service allow a client to access user data...http://www.google.com.tw/patents/US6920455?utm_source=gb-gplus-share專利 US6920455 - Mechanism and method for managing service-specified data in a profile service
