GIS Dictionary

[database structures] A commercial RDBMS.

[symbology] A graphic used to represent a geographic feature or class of features. Symbols can look like what they represent (trees, railroads, houses), or they can be abstract shapes (points, … Read more

[defense] A 15-character identifier that provides the information necessary to display or transmit a tactical symbol between MIL-STD-2525B compliant systems.

[ESRI software] In ArcGIS, a setting that determines the drawing order of features based on their symbol. When symbols have more than one layer, symbol level drawing can be used … Read more

[symbology] A collection of symbols.

[ESRI software] In MOLE, a defined area in which optional text or graphics may be entered to provide additional information about a force element or tactical graphic.

[symbology] The process of devising a set of marks of appropriate size, color, shape, and pattern, and assigning them to map features to convey their characteristics at a given map … Read more

The set of conventions, rules, or encoding systems that define how geographic features are represented with symbols on a map. A characteristic of a map feature may influence the size, … Read more

1 [ESRI software] In geodatabase editing, the process of applying changes made from a replica to the relative replica in a replica pair. 2 [database structures] The process of automatically … Read more

1 [ESRI software] In geodatabase editing, the geodatabase version that receives changes during synchronization. The synchronization version is always a child of the replica version. With one-way and two-way replication, … Read more

1 [physics] Occurring together, or at the same time. 2 [data transfer] In data transmission, precisely timed and steady transmission of information that allows for higher rates of data exchange. … Read more

[programming] The structural rules for using statements in a command or programming language.

[ESRI software] In ArcGIS, a geoprocessing tool. System tools are stored in system toolsets and can be copied to custom toolsets and/or toolboxes.

[ESRI software] In ArcGIS, a default geoprocessing toolbox that is installed with ArcGIS. System toolboxes contain system tools, organized into toolsets for ease of access.

[ESRI software] In ArcGIS, a subset of a geoprocessing toolbox that holds system tools.

[ESRI software] In Survey Analyst, one type of measurement error. Systematic error follows a mathematical or physical law, and it can be corrected to comply with a known standard.