Basic Entries of Metadata and Use in GIS (References and Identification) : Metadata Describes Additional Information (Especially for GATE-Geospatial 2022)

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Metadata is data about data. It is a complete description of the major facets of quality, source, and accessibility of the data that make them useful not only to you, but to others who might use the data after you do. The Federal Geographic Data Committee, which is responsible for maintaining spatial data standards in the U. S. Government, has developed a list of seven basic entries geospatial metadata:

This Diagram Shows Basic Entries of Geospatial Metadata

Identification

Defines the database name, developer, area of coverage, categories, themes, collection methods, and data access.

Data Quality

How accurate and complete the data are, adaptability for application, positional accuracy, completeness, consistency, and sources for derived data.

Spatial Data Organization

Data model (vector/raster) , number of spatial objects, additional non-coordinate methods of location encoding.

Spatial Reference

Latitude and longitude coordinates included, projections used, datums, parameters used for coordinate transformations.

Entity and Attribute Information

Specific attributes, what information is encoded, codes, and code definitions.

Distribution

Where and from whom to obtain the spatial data, available formats, media type, online availability, and cost.

Metadata Reference

Compilation date and compiler.

There are numerous online tools for developing metadata. Always provide the most current, complete, and accurate metadata you can. Similarly, never buy data for your GIS from a vendor who does not supply complete metadata.

To validate the metadata, answer the following questions:

  • Did I get correct data?
  • Are your data on the right scale?
  • Are the data timely?
  • Are the data complete?

Use of Metadata

Major uses of metadata are as under:

  • Organize and maintain an organization՚s investment in the data
  • Provide information to data catalogs and clearing houses.

Provide information to aid in data transfer.

Developed by: