3. The method of claim 2 , further comprising: prior to the storing, compiling each generated value expression.
3. The method of claim 2 , further comprising: prior to the storing, compiling each generated value expression. 4. The method of claim 3 , wherein the compiling further comprises: receiving a query from the user, wherein the query requests access to a node in the structured document; executing the query; evaluating the value expression corresponding to the path associated with the requested node; displaying data associated with the requested node if the value expression grants access to the user; and hiding data associated with the requested node if the value expression denies access to the user.