GIS Dictionary

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operator precedence

[mathematics] The order in which operators are evaluated in an expression; operators with a higher precedence are evaluated before those […]

optimization

[IS technology] The process of fine-tuning data, software, or processes to increase efficiency, improve performance, and produce the best possible

Oracle

[computing] A database company that produces a relational database management system (also called Oracle), which allows data and other objects

order

[ESRI software] In ArcGIS Network Analyst, a network location used to determine routes in vehicle routing problem (VRP) analysis. Users

order pair

[ESRI software] In ArcGIS Network Analyst, an object used in vehicle routing problem (VRP) analysis. An order pair defines a

ordinal data

[data structures] Data classified by comparative value; for example, a group of polygons colored lighter to darker to represent less

ordinary kriging

A kriging method in which the weights of the values sum to unity. It uses an average of a subset

ordinate

[Euclidean geometry] In a rectangular coordinate system, the distance of the y-coordinate along a vertical axis from the horizontal or

Ordnance Survey

[cartography] The national mapping and cartographic agency of the United Kingdom. Now a civilian organization, the Ordnance Survey is one

orientation

1 [geography] An object’s position or relationship in direction with reference to points of the compass. 2 [ESRI software] In

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