Relational Database Management Systems, Database Design, and GIS

Overview of GIS Database Design :A geographic information system (GIS) is comprised of several elements, including Hardware, Software, Users/People, Procedures/Methods, Data, GIS Organizations, Select hardware and software, Train their users and Develop procedures. The technology incorporated into business flow Comprised of two systems – one to handle the spatial elements, another to manage attribute data.

TOPICS COVERED: (in pointers)

  • Most hybrid systems use a proprietary data model.
  • Separate storage systems complicate database maintenance, increase disk access and network traffic
  • Requires diligence, attention to detail and special applications to maintain feature-attribute linking.
  • What happens when a user splits a line segment?
  • Where does the original attribute records go?
  • How do you maintain a historical record of line splitting?
  • How are other GIS layers affected by splitting a pipe?
  • Example of a Hybrid Model? (ARC/INFO, ESRI ShapeFile)
  • Overview of GIS Database Design



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