raster data model
See Also: vector data model
[data models] A representation of the world as a surface divided into a regular grid of cells.
Raster data models incorporate the use of a grid-cell data structure where the geographic area is divided into cells identified by row and column. This data structure is commonly called raster.
raster data model
A representation of the world as a surface divided into a regular grid of cells.
vector and raster data models
field and object data models
representations for fields - pointgrids, contours, TIN data models
even data structures such as GBF/DIME and chaincodes have been called data models (Peuquet 1990) ...
In this section the implications of vector and raster data models on encoding, storage, and analysis are discussed. The inherent statistical characterizations of mapped data and their implications in map analysis are described.
A DEM held as a regular matrix suffers the same disadvantages due to size as does the raster data model.
Grid layers are graphical representations of the ArcGIS and ArcInfo implementation of the raster data model. Grid layers are stored with a numeric value for each cell. The numeric cell values are either integer or floating-point.
While it is recommended that software incorporate both vector and raster data models, priority should be given to vector data model capabilities.
I would suggest you explore the Object-relational database, the ESRI website, the vector and raster data model, geostatistics or spatial statistics, topology or geospatial topology, and the open-geospatial consortium (OGC) website.
Spatial Extension*
Share advanced raster data modeling and analysis.
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The raster data model is composed of a grid and each cell within the grid holds data. Another way to explain it is that the polygon has a grid laid over it and the polygon would fill those cells with data, each cell in the grid being assigned a value.
With the raster data model, spatial data is not continuous but divided into discrete units.
 See also: Raster Data, GIS, Raster, Model, Data Model
  
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