OBJECT

OBJECT DIAGRAM

OBJECT IDENTIFIER

OBJECT LIFE CYCLE

OBJECT REFERENCING

OBJECT-ORIENTED MODEL

OBSERVATION DOMAIN MODEL

OBSERVATION MODEL

OCEANOGRAPHIC GEOGRAPHICAL FEATURES

OCL

OCTREE

OFF-LINE

OGC

OGC abstract specification

OGC implementation specification

OLE/COM – Object Linking and Embedding/Common Object Model

OMG – Object Management Group

ON-LINE

ONTOLOGY

OPEN DATA

OPEN GIS CONSORTIUM, INC

OPEN POLYLINE

OPEN STANDARD

OPEN SYSTEM

OPEN-SOURCE SOFTWARE

ORACLE CORPORATION

ORDINAL SCALE

ORTHOIMAGERY

ORTHOPHOTOMAP

ORTHORECTIFICATION

OUTER ORIENTATION

OUTLIER

OVERLAYING

OpenStreetMap