Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53569#.VMnUFyzQrzE Author(s) Zahra Rezaee 1 , Mohammad Reza Malek 2 Affiliation(s) 1 Department of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran . 2 Department of GIS, Faculty of Geodesy and Geomatics Engineering, K.N. Toosi University of Technology, Tehran, Iran . ABSTRACT The infrastructure of most of the practical and construction activity in communities is based on correct understanding and proper use of spatial data in GIS 1 and SDI 2 . Optimal and efficient use of infrastructure systems of the spatial data by users, depends on how to search and access of user to proper and desired data among informative sources of various organizations. Search operation and access of users to various information of multiple sources located on Spatial Data Infrastructure Network is confusing and time-co...
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