Home

A Procedural Approach to Schema Evolution

Wed, 09/20/2006 - 14:54 — cat
Authors: 
Ewald, CA; Orlowska, ME
Author: 
Ewald, C
Orlowska, M
Year: 
1993
Venue: 
Proc. Conf. on Advanced Information Systems Engineering (CAISE) , LNCS 685
URL: 
http://portal.acm.org/citation.cfm?id=646081.676529&coll=portal&dl=ACM&CFID=11111111&CFTOKEN=2222222
Citations: 
8
Citations range: 
1 - 9
AttachmentSize
Ewald1993AProceduralApproachtoSchemaEvolution.pdf23.92 KB

Like data, conceptual schemata change and need to be updated. If not performed with care, updates can cause problems. In this paper, we present a procedure which safely adds a fact type to a conceptual schema. This procedure, as well as being used for simple schema updates, may be applied to design and integration problems. We also present procedures for the safe removal of a fact type, and the safe elimination of redundant information from the conceptual schema.