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

utility COM object

[programming] In ArcObjects, a COM object that encapsulates a large number of fine-grained ArcObjects method calls and exposes a single […]

UTM

Acronym for universal transverse Mercator. A projected coordinate system that divides the world into 60 north and south zones, 6

UVMap

[cartography] Acronym for Urban Vector Map. A vector-based data product in vector product format (VPF), typically at larger scales ranging

vagueness

[uncertainty] In GIS, a state of uncertainty in data classification that exists when an attribute applies to an indeterminate quality

valency

[ESRI software] In coverages, the number of arcs that begin or end at a node.

valency table

[ESRI software] A table that lists the nodes in a data layer along with their valencies.

valid value table

[ESRI software] A component of the PLTS knowledge base that contains the valid attribute combinations and rendering information for the

validation

1 [software] The process, using formal methods, of evaluating a system or software component to determine whether it functions as

validation rule

[data quality] A rule applied to objects in the geodatabase to ensure that their state is consistent with the system

value

1 [mathematics] A measurable quantity that may be passed to a function. Values are either assigned or determined by calculation.

variable

1 [mathematics] A symbol or placeholder that represents a changeable value or a value that has not yet been assigned.

Scroll to Top