DATA ITEM
A sequence of related characters which can be defined as the smallest logical unit of data that can be independently and meaningfully processed. For example, this might be an x, y CO-ORDINATE pair of values.
field
data items (attributes)
entity - collection of related data items
defined as physical object in GIS ...
Application/Data Item Matrix
Land Parcels Roads Buildings Water Mains Fire Hydrants Wetland Areas #1 Leak Detection Map
X ...
Field: Columnar data item in a DBMS.
File: In computing, a collection or set of related digital data stored on a computer disk and accessed/ retrieved according to an assigned unique name.
Flat File A structure for storing data ina computer system in which each record in the file has the same data items, or fields.
An RDBMS has the capability to recombine the data items from different files, providing powerful tools for data usage. See also relate. real numbers Decimal numbers (e.g., 3.1417, 0.25, 1.8992, 6.0). record 1.
The interfaces for all geolytics products have the following things in common: You build specifications for selecting a set of data items for a particular geographic area. These specificatios are saved as a request file.
Data mining Many data mining applications involve partitioning data items into related subsets; the marketing applications discussed above represent some examples.
Vehicle and incident location are central data items in ITS. In a world of competing vendors of street network data - and inevitable discrepancies and errors in position, street naming, ...
The records, or data items, were fairly independent (usually just alpha-numerically sorted) and items in separate files were totally independent.
The function-specific data items are assigned to elements, such as points, links or areas, that likely only approximate the corresponding map elements in a specific map database. A search of the map database is made for the best fit.
Besides the above issues, vector data is easier than raster data to handle on a computer because it has fewer data items and it is more flexible to be adjusted for different scale, for example, a specific projection system in a GIS database.
Array - A collection of data items of the same size and type (though they may have different values). In mathematics, a one-dimensional array is called a vector; a two-dimensional array is called a matrix.
...
Search, identify, and route a variety of different data items and score these values with assigned weighted values, to facilitate proximity and routing analysis.
Perform statistical analysis, such as multivariate regression, correlations, etc.
A named collection of logically related data items arranged in a prescribed manner.
Database ...
cost of checking data to see if it meets standards - does every data item have to be checked?
where computer or product is involved: ...
row
1. A record in an attribute table. The horizontal dimension of a table composed of a set of columns containing one data item each.
2. A horizontal group of cells in a grid, or pixels in an image.
An RDBMS can recombine the data items from different files, providing powerful tools for data usage. RDBMS services include validation rules, relationships, and topological associations.
 See also: Information, Attribute, Database, GIS, Record
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