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ABSTRACT

 

Urban planning is a complex phenomenon, which require enormous amount of data to support the decision. The planning authority requires an information system, which will be able to monitor and surveillance the planning regulations and will work as early warning system. GIS can be the one. The application of GIS in the planning and management is very common in the developed countries but in developing countries like ours its use is very limited. In our country the use and ability of this technology is not still clear to the potential users of this technology. Besides within the little number of GIS users, mainly Vector data model became popular. But vector data model is only a part of GIS world.  The capability of GIS is very wide. It also have another prominent data model called raster and also this two major data models have sub models with some speciality like Triangulated Irregular Network (TIN) and GRID.

 

In any application of GIS the users have to take some decisions including data model as they can influence the result of the application. The choice of data model is also a critical issue which requires careful consideration in a GIS application. Every data model has its specialties to store and analyse data. In this research GIS data models is analysed critically to explore its prospect and efficiency and show how the data models can be used in planning field.  This study also gives guidelines to choose data model in planning applications.