كليدواژه :
plan , development , data exchange standards , GIS/LIS standards
چكيده لاتين :
This paper stresses on the need for establishing data exchange standards to ensure easy process of spatial data exchange in Iran. It highlights classification of items for data exchange process and criteria for selection of strategy to develop data standards The conformance of standards leads us to better use and easier share and faster access to what we have in reality. The standards are classified as follows in [Clifford A. Kottman]: The media layer, the encapsulation layer, the world view layer, the data structure layer, the schema implementation layer, the feature/attribute dictionary layer, the content layer, the metadata layer, the directory and indices layer, the receiver tools, the user environment layer