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Data Management in Geodise
Data Management in Geodise

...  The data can be stored with additional descriptive information detailing standard metadata (e.g. file format, description) and application domain specific metadata (e.g. grids, flux_order).  An XML database is used as is it flexible enough to store nested, complex engineering data. © Geodise Proj ...
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Entity–attribute–value model

Entity–attribute–value model (EAV) is a data model to describe entities where the number of attributes (properties, parameters) that can be used to describe them is potentially vast, but the number that will actually apply to a given entity is relatively modest. In mathematics, this model is known as a sparse matrix. EAV is also known as object–attribute–value model, vertical database model and open schema.
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