Definitions in ArcMap:
Map Document (.mxd file) – The file that contains one map, its layout, and its associated layers, tables, charts, and reports. Map documents can be printed or embedded in other documents. Map document files have a .mxd extension.
Table of Contents – The tabbed list of data frames and layers (or tables) on a map that shows how the data is symbolized, the source of the data, and whether or not each layer is selectable.
Data Frame – A map element that defines a geographic extent, a page extent, a coordinate system, and other display properties for one or more layers. A dataset can be represented in one or more data frames. In data view, only one data frame is displayed at a time; in layout view, all a map’s data frames are displayed at the same time.
Map Layer – The visual representation of a geographic dataset in any digital map environment. Conceptually, a layer is a slice or stratum of the geographic reality in a particular area, and is more or less equivalent to a legend item on a paper map. On a road map, for example, roads, national parks, political boundaries, and rivers might be considered different layers.
Attribute Table – A database or tabular file containing information about a set of geographic features, usually arranged so that each row represents a feature and each column represents one feature attribute. In raster datasets, each row of an attribute table corresponds to a certain zone of cells having the same value. Attribute tables are often joined or related to spatial data layers, and the attribute values they contain can be used to find, query, and symbolize features or raster cells.
Read the rest of this entry »