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JUCS
2010

A Geometrically Enhanced Conceptual Model and Query Language

8 years 8 days ago
A Geometrically Enhanced Conceptual Model and Query Language
: Motivated by our experiences with spatial modelling for the sustainable land use initiative we present a geometrically enhanced ER model (GERM), which preserves the key principles of entity-relationship modelling and at the same time introduces bulk constructors and geometric features. The model distinguishes between a syntactic level of types and an explicit internal level, in which types give rise to polyhedra that are defined by algebraic varieties. It further emphasises the stability of algebraic operations by means of a natural modelling algebra that extends the usual Boolean operations on point sets. Key Words: conceptual model, geometric model, spatial model, entity-relationship model, natural modelling algebra, query language
Hui Ma
Added 20 May 2011
Updated 20 May 2011
Type Journal
Year 2010
Where JUCS
Authors Hui Ma
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