Data comprised of x-y coordinate representations of locations on the earth that take the form of single points, strings of points (lines or arcs), or closed lines (polygons).
Data that is based on a structure which stores and represents map features by a set of ordered "x,y" coordinates. This differs from the raster data structure in which attributes are attached to individual grid cells or pixels. (See Raster data).
When used in the context of spatial information, refers to a format where all data is stored as points, lines, and areas rather than as an image or continuous tone picture