Introduction to Geographical Information System, GIS data models, spatial data, spatial database, A Location based Secure Access Control Method for Geospatial Data

Abstract

Geospatial data is data about the geographic location of earth surface features and boundaries on Earth. Nowadays spatial data is used in every field of society and due to the advancements in spatial data acquisition technologies, such as the advancements in the satellite sensor technologies, high precision digital cameras used in the capturing of photogram metric images and high precision land surveys are producing mass high precision spatial data. Due to these issues nowadays sensitivity of spatial data has increased too many folds. To store such high precision data onto the database is a big challenge today. Major security concerns of the geospatial data are based on authorization, authentication, access control, integrity, security and secure transmission of spatial data over the network and transmission media. In this paper the major security concerns of geospatial data, various data models, introduction to Geographical Information System, GIS data models, spatial data, and spatial database. The basic objective is to developed secure access control mechanism.