geographic information systems
type: Concept
narrower: CAD systems

CAD systems
definition: Computer-assisted (or aided) drafting (CAD) systems are used to produce maps, diagrams, drawings, plans, and charts. CAD systems are to maps and graphics what word processing packages are to the written word: an easier, digital method for creating and editing documents, which were once drafted by hand. [Source: Encyclopedia of Geography; CAD Systems]
broader: geographic information systems
type: Concept

concepts
type: Collection
type: ConceptGroup
member: CAD systems