Document Type : Research Paper

Author

• Mahdi Modiri

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

Abstract

Recently, a tendency toward the combined implementation of space-time information on extended spatial bases has emerged. In geographic information systems and other sciences, studies are conducted in different fields of space-time display and argumentation. Creating a Temporal Geographic Information System (TGIS) leads to a system that is capable of plotting, displaying and analyzing various study areas, storing specific geographic features, and forecasting future characteristics.
A Temporal Geographic Information System (TGIS) can be used to identify the steps that cause geographic changes, and connect the various stages of obtaining different data patterns.
The main themes of this paper are the development of TGIS, determination of conceptual models and modeling structures. In a TGIS system, several methods for conceptual modeling are proposed. In the past, these methods were performed according to the intended type of search. In fact, questions such as "What?", "Where?" And "When?" were categorized according to space, (land) feature and event (Peuquest and Dauan). Other classifications of these methods are also determined by the tools used in modeling, such as diagrams of symbols relationships, semantic models, orientations ...
This article is a comprehensive examination of the various points of view associated with GIS.

Keywords

• Time Geographical Information Systems (TGIS)
• conceptual models
• process models
• hybrid models
• combined models