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» A Geometrically Enhanced Conceptual Model and Query Language
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GIS
1998
ACM
13 years 7 months ago
Natural-Language Spatial Relations Between Linear and Areal Objects: The Topology and Metric of English-Language Terms
Spatial relations are the basis for many selections users perform when they query geographic information systems (GISs). Although such query languages use natural-language-like te...
A. Rashid B. M. Shariff, Max J. Egenhofer, David M...
SIGMOD
2006
ACM
122views Database» more  SIGMOD 2006»
14 years 7 months ago
The ADO.NET entity framework: making the conceptual level real
This paper describes the ADO.NET Entity Framework, a platform for programming against data that raises the level of ion from the logical (relational) level to the conceptual (enti...
Anil Nori, José A. Blakeley, S. Muralidhar
ER
2007
Springer
163views Database» more  ER 2007»
14 years 1 months ago
Know your Limits: Enhanced XML Modeling with Cardinality Constraints
XML Schema supports the specification of occurrence constraints by declaring values for its min/maxOccurs attributes. These constraints are structural in the sense that they rest...
Sebastian Link, Thu Trinh
JDWM
2008
120views more  JDWM 2008»
13 years 7 months ago
Algebraic and Graphic Languages for OLAP Manipulations
This article deals with multidimensional analyses. Analyzed data are designed according to a conceptual model as a constellation of facts and dimensions, which are composed of mul...
Franck Ravat, Olivier Teste, Ronan Tournier, Gille...
OTM
2005
Springer
14 years 1 months ago
ORM 2
: Object-role Modeling (ORM) is a fact-oriented modeling approach for specifying, transforming, and querying information at a conceptual level. Unlike Entity-Relationship modeling ...
Terry A. Halpin