GIS Dictionary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Ob Od Of Og Ol On Op Or Ou Ov Ow

on-demand cache

[ESRI software] In ArcGlobe, a temporary layer cache that is placed on disk and built as areas of the layer are viewed.

one-to-many relationship

[database structures] An association between two linked or joined tables in which one record in the first table corresponds to many records in the second table.

one-to-one relationship

[database structures] An association between two linked or joined tables in which one record in the first table corresponds to only one record in the second table.

one-way replication

[ESRI software] A type of geodatabase replication that allows data changes to be sent multiple times from the parent replica to the child replica. In a one-way replication, the data … Read more

ontology

[ocial context of GIS] In computer science, a data model that represents a domain by detailing the entities that comprise it and the semantic relationships between them. Ontologies generally include … Read more