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Design of conceptual model in digital map database
Authors:Zou Yijiang Ph. D. candidate
Affiliation:ZOU Yijiang
Abstract:The components of map information are analyzed theoretically in this paper,and the map information includes mainly the spatial information,attributive information and temporal characteristics information.Then the digital map entity is defined according to construction characteristics of the map information.Finally,on the basis of the analyses of the construction characteristics of digital map entity and present conceptual model of digital map database,an abstracted conceptual model of digital map database is presented.And the Normal Form theory of relational database is discussed particularly.
Keywords:digital map  database  conceptual model
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