Metadata Catalogue Sri Lanka has, over the past years, produced a rich base of map information through systematic topographic surveys, geological surveys, soil surveys, cadastral surveys, various natural resources inventory programs and the use of the remote sensing images. Further, with the availability of precision, high-resolution satellite images, data enabling by the organization of Geographical Information System (GIS), combined with the Global Positioning System (GPS), the accuracy and information content of these spatial datasets or maps is extremely high. View recent blog entries admin 21 Dec, 2024 Encapsulating these maps and images into a National Spatial Data Infrastructure (NSDI) has been recognized and the emphasis is on information transparency and sharing, with the recognition that spatial information is a national resource and citizens, society, private enterprise, and government have a right to access it, appropriately. Only through common conventions and technical agreements, standards, metadata definitions, network and access protocols will it be easily possible for the NSDI to come into existence. The Metadata standard specifies the elements needed to support the establishment of NSDI Metadata and also for major uses of metadata.Encapsulating these maps and images into a National Spatial Data Infrastructure (NSDI) has been recognized and the emphasis is on information transparency and sharing, with the recognition that spatial information