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Database Versioning

  • By: Gregory L. Vert
  • In: Encyclopedia of Geography
  • Edited by: Barney Warf
  • Subject:General Geography, Earth & Environmental Science

A spatial information system provides storage and management for data such that it has integrity in the representation of information. Integrity refers to the fact that the information stored in the system represents accurately the physical world. After all, a computer's data are an abstraction of reality. To develop integrity, an information system must have a data model describing the relationships among data and the types of data being stored. This approach has come to define, in conjunction with the actual data being stored, what an information system is. The information system also needs to support several practical considerations from a user's point of view and an administrator's point of view. One of these is the need for versioning and annotation of groups of related ...

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