NGDF Discovery Metadata Guidelines - Version 1.2
The NGDF Discovery Metadata Guidelines represent the first stage in the development of metadata services for the discovery of data resources that have a geographic component. Their aim is to provide a consistent and simple method of documenting any data resources that are referenced in some way to the earth’s surface whether by coordinates or geographic identifiers (addresses, administrative area, postcode area). The consistent recording of metadata or information about data resources and their presentation in catalogues accessible to the user community via the Internet considerably facilitates the discovery of such data resources.
The guidelines are based upon the draft ISO metadata standard 15046-15. The intention is to make the guidelines a profile of the ISO standard in time. They were produced after extensive research of existing standards and guidelines and following a workshop in which data producers were encouraged to compile metadata relating to their own datasets.
Some 42 metadata elements have been identified as necessary for documentation at the discovery level of which 16 are mandatory and a further 7 are conditional depending on the context, the remainder are optional. These elements cover title, theme, date and spatial extent, access constraints, nature of the resource, how to obtain additional information and data supply.
Download the WinZip version of the Discovery Metadata Guidelines version 1.2
Download the WinZip version of the Discovery Metadata Transfer Format and Communications Protocol Guidelines version 1.2
View the PDF version of the Discovery Metadata Guidelines version 1.2
View the PDF version Discovery Metadata Transfer Format and Communications Protocol Guidelines version 1.2