| 摘要 |
In a method for information access, search, and retrieval over a data communication system generally, wherein a query is applied to a set of documents, a result set of the matching documents are identified. The method comprises amending the query according to the access entitlements of the current user to the original documents in source systems, in such a way that only documents the user is allowed to access directly from various source systems appear in the result set, even when the source documents reside in systems of different security domains that potentially are dependent on each other. In a search engine (100) capable of supporting and implementing the above method, the search engine comprises as per se known subsystems for performing search and retrieval in the form of one or more core search engines (101), a content application programming interface (102), a content analysis stage (103) and a client application programming interface (107) connected to the core search engine (101) via query analysis and result analysis stages (105;106). In addition the search engine (100) for supporting the above method comprises a module (108) for amending the query.
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