• 1. Geographical Cognition of the Real World
  • 2. The abstraction of the real world
  • 3. Bit world
  • 1. Data meaning and data type
  • 2. Measurement scale of data
  • 3. GIS data quality
  • 1. Map digitization
  • 2. Processing of spatial data entry
  • 1. Computer network technology
  • 2. Distributed geographic information system
  • 3. WebGIS - World Wide Web Geographic Information System
  • 1. Socialization of GIS
  • 2. Other problems of GIS socialization
  • 3. The impact of society on the development of GIS

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