Document Type : Research Paper

Author

• Mahdi Modiri

Associate Professor of Urban planning, Malek-Ashtar University of Technolog

Abstract

The base and main essence of GIS in today's world is to provide reliable tools
of decision-making based on geographic information.
Given the wide-ranging applications of GIS, the new features considered for it, the accessibility, true dynamism, efficiency and practical advantages of GIS, it is expected that the GIS range of users find broader aspects.
The base and essence of GIS in today's world is to provide reliable decision-making tools based on geographic information, and the presence of surveying engineers in the GIS environment requires careful planning, which is the basis for decisions and a guidance for future work. In an overview based on the diversity of working environment, GIS can be categorized as such: Collection of information; Combination of information; analysis of information; Presentation of information.