A Comparative Analysis of View Integration Methodologies

M. Schrefl
Schr87a (1987)
R. R. Wagner, R. Traunmüller, H. C. Mayr (eds.): Informationsbedarfsermittlung und -analyse für den Entwurf von Informationssystemen, Proc. Fachtagung EMISA, Linz, Österreich, 2.-3. Juli 1987, Springer Verlag (Informatik-Fachberichte Nr. 143), ISBN 3-540-18052-4, pp. 119-136, 1987.
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One of the most difficult tasks in logical database design is the analysis and the integration of the requirements different user groups have on the whole application. Once the requirements of each user group have been formally described by view database schemas, view integration methodologies are used to construct a conceptual database schema that can support all different user views.

Furthermore view integration methodologies are used in a domain which is similar to user view integration: in the design of multidatabase systems. There the problem is to define a single global view for several databases already in use.

Recently, several methodologies for user view integration and global view definition have been proposed in literature. The purpose of this paper is, first, to define comparison criteria for view integration methodologies and, secondly, to provide a comparative analysis of the features and main characteristics of the most important view integration methodologies with respect to the given criteria.