Elaboration d'entrepôts de données complexes

Details Elaboration d'entrepôts de données complexes Elaboration d'entrepôts de données complexes

2010-05-03

arxiv.org/abs/1005.0220v1

congr\`es INFormatique des ORganisations et Syst\`emes d'Information et de D\'ecision - INFORSID'00, Lyon : France (2000)

Computer Science

Databases

Scientific paper

In this paper, we study the data warehouse modelling used in decision support systems. We provide an object-oriented data warehouse model allowing data warehouse description as a central repository of relevant, complex and temporal data. Our model integrates three concepts such as warehouse object, environment and warehouse class. Each warehouse object is composed of one current state, several past states (modelling its detailed evolutions) and several archive states (modelling its evolutions within a summarised form). The environment concept defines temporal parts in the data warehouse schema with significant granularities (attribute, class, graph). Finally, we provide five functions aiming at defining the data warehouse structures and two functions allowing the warehouse class inheritance hierarchy organisation.

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