A new version of the POSC Epicentre logical data model Version 3.01 is available. Major changes include a restructuring to minimize multiple inheritance, and the elimination of all Activity subtypes. The EPSG recommendations for coordinate systems have been adopted and proposals from Statoils SLEGGE project have been taken on board. The result is a e is a net reduction of about 300 entities. The preliminary version of the model can be downloaded from www.posc.org.
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