[GD6-5] Primary and secondary sources

Primary data sources provide information collected directly for GIS use. Secondary sources are data sources that need to be processed before they are ready for GIS use.

External resources

• Thapa, K., & Bossler, J. (1992). Accuracy of spatial data used information systems. Photogrammetric Engineering & Remote Sensing, 58(6), 835-841.

Learning outcomes

• 826 - Explain the distinction between primary and secondary data sources in terms of census data, cartographic data, and remotely sensed data
  Explain the distinction between primary and secondary data sources in terms of census data, cartographic data, and remotely sensed data
• 827 - Describe a scenario in which data from a secondary source may pose obstacles to effective and efficient use
  Describe a scenario in which data from a secondary source may pose obstacles to effective and efficient use

Self assessment

Outgoing relations

• [GD6-5] Primary and secondary sources subclassof [GD4-1] Data quality