Listing of Glossary

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Measurement framework	a scheme that establishes rules for control of other components of a phenomenon that permit the measurement of one component. In a geographic information system, there are three components: time, space, and attribute.
Metadata	information describing a collection of data; includes source, access issues, format, schema and data quality.
Map	Cartography; a hand-drawn or printed document describing the spatial distribution of geographical features in terms of a recognizable and agreed symbolism. Digital; the collection of digital information about a part of the earth's surface.
Map projection	The basic system of coordinates used to describe the spatial distribution of elements in a GIS
Map scale	The reduction needed to display a representation of the Earth's surface on a map. A statement of a measure on the map and the equivalent measure on the Earth's surface, often expressed as a representative fraction of distance, such as 1:24,000 (one unit of distance on the map represents 24,000 of the same units of distance on the Earth). Map scale can also be expressed as a statement of equivalence using different units; for example, 1 inch = 1 mile or 1 inch = 2,000 feet.
Meridian	A line running vertically from the north pole to the south pole along which all locations have the same longitude. The Prime Meridian (0) runs through Greenwich, England. From the Prime Meridian, measures of longitude are negative to the west and positive to the east up to 180, halfway around the globe.
Map Projection	Coordinate conversion from a geodetic coordinate system to a plane.
Map Server	A server that accesses spatial information and renders it to the client suitable for display as one or more layers in a map composed of many layers.
Metadata	A formalised set of descriptive properties which is shared by a community to include guidance on expected structures, definitions, repeatability, and conditionality of elements.