ABSTRACT
Consider the architecture for the inference controller discussed in Chapter 11. The inference engine has access to the knowledge base that includes security constraints, previously released responses, and real-world information. Conceptually, one can think of the database as part of the knowledge base. We illustrate the query modification technique with examples. The actual implementation of this technique could adapt any of the proposals given in Gallaire and Minker (1978) for deductive query processing.
