GIS terms starting with O

25 terms

  1. Object Linking and Embedding (OLE) Object Linking and Embedding developed by Microsoft. Allows objects from one application to be embedded within another (e.g.
  2. Object Management Group (OMG) The Object Management Group is a computing industry collaboration to promote object-oriented interoperability among heterogeneous computing environments.
  3. OCTO GIS Refers to the central GIS staff, and not the DC GIS system.
  4. One-to-many A relate in which one record in a table is related to many records in another table.
  5. one-to-many-relate A type of relate connecting a unique value in one file to many records (that have the same value) in another file.
  6. online access Direct access to data that does not involve file transfer.
  7. Open Database Communication (ODBC) A standard API (application program interface) used to communicate with database management systems, developed by Microsoft, and incorporated in ArcView…
  8. Open Geodata Interoperability Specification (OGIS) The Open Geodata Interoperability Specification being developed by OGC to support interoperability of GIS systems in a heterogenous computing environment.
  9. Open GIS Consortium (OGC) A group composed of software vendors, academics, government agencies, consultants and software integrators, dedicated to open systems geoprocessing.
  10. OPEN LOOK A graphical user interface (GUI) for the X Window system developed by AT&T (Open Look) and Sun Microsystems (OPEN LOOK). (See also OSF/Motif).
  11. Open Software Foundation (OSF) The Open Software Foundation is an international consortium that promotes the standardization of the UNIX operating system.
  12. Open Systems Interconnect (OSI) a seven-layer hierarchical reference interface and communications model sponsored by ISO, 1984, known as the OSI Reference Model: layer 7--applications…
  13. Operating System (OS) The software that the rest of the software depends on to make the computer functional. On most PCs this is Windows or the Macintosh OS.
  14. Optical Character Recognition (OCR) The automatic recognition and interpretation of text.
  15. optical disk A digital data storage technology that uses optical media to store information.
  16. ORACLE A relational database management system to which ARC/INFO has access through the DATABASE INTEGRATOR.
  17. origin The reference location for a planar coordinate system, usually represented by the values 0,0. The place where a trip starts.
  18. originator The acronym for the agency that is the original source of the data. The source for nearly all map layers created by OCTO that are not part of the…
  19. orthophotograph Aerial photographs that have been processed to correct for scale variations and image displacement resulting from relief or terrain variations and camera…
  20. orthophotography The process of aerial photographs that have been rectified to produce an accurate image of the Earth by removing tilt and relief displacements which…
  21. OSF/MOTIF An industry-standard graphical user interface developed by the Open Software Foundation for the UNIX workstation environment.
  22. overlay See topological overlay.
  23. overshoot That portion of an arc digitized past its intersection with another arc. See also dangling arc.
  24. Owner Point A map point over a single lot, attributed with information about the owner.
  25. Owner Polygon A single polygon feature class that represents land with taxable information about the owner, taxes, land use, etc.