Title :
Knowledge-base/database consistency in a federated multidatabase environment
Author :
Seligman, Leonard J. ; Kerschberg, Larry
Author_Institution :
Mitre Corp., Lexington, MA, USA
Abstract :
The paper describes a new approach to maintaining consistency between objects which reside in dynamic, shared databases and copies of those objects which are cached in application knowledge-bases. The approach relies on an intelligent interface to active databases, a mediator for approximate consistency (MAC). The MAC permits applications to specify their consistency requirements declaratively, using a simple extension of a frame-based representation language. It then automatically generates the interfaces and database objects necessary to enforce those consistency requirements, shielding the knowledge-base developer from the implementation details of consistency maintenance. While the authors focus on knowledge-base/database consistency issues, the approach is applicable to any component of a multidatabase federation which needs to cache dynamic data and to enforce some degree of consistency between itself and other components in the federation
Keywords :
buffer storage; deductive databases; distributed databases; knowledge representation; MAC; application knowledge-bases; consistency; data caches; database objects; federated multidatabase environment; frame-based representation language; intelligent interface; knowledge-base/database consistency; mediator for approximate consistency; shared databases; Artificial intelligence; Database systems; Deductive databases; Design engineering; Information retrieval; Knowledge engineering; Problem-solving; Production systems; Prototypes; Relational databases;
Conference_Titel :
Research Issues in Data Engineering, 1993: Interoperability in Multidatabase Systems, 1993. Proceedings RIDE-IMS '93., Third International Workshop on
Conference_Location :
Vienna
Print_ISBN :
0-8186-3710-2
DOI :
10.1109/RIDE.1993.281950