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In spatial databases, an island is a polygon wholly contained within another polygon.

Click here to expand contentClick here to collapse content  ISP

Acronym for Internet service provider, an institution that provides access to the Internet in some form, usually for money.

Click here to expand contentClick here to collapse content  Join

Combing two tabular data sets into a single one based on a common field. Two tables with a common domain combined into a single table. SQL query that retrieves data from two or more sources at once based on matching field values.

A highly generalized map used to provide a contexture reference for retrieving more detailed spatial data sets for specific geographic areas.

  1. Familiarity, awareness, or understanding gained through experience or study.
  2. Sum or range of what has been perceived, discovered, or learned about a specific body of information.
  1. Text annotation posted on a map near a spatial feature.
  2. Same as one wherein the source of the value of each label is from a linked database record.
  3. Symbol or set of symbols identifying the contents of a file, memory, tape, or record.
Click here to expand contentClick here to collapse content  LAN

Acronym for Local Area Network a communications system that typically consists of PCs with adapter cards, file servers, a network operating system, printers and gateways to departmental or corporate computers. Typically serves a small geographic area of a single building or campus of buildings.

Spatial overlay comprised of multiple layers of primitive spatial features that provide a locational reference to other spatial features in the spatial database. It also includes a framework of competent survey data that provides a precision control network. The land base is also referred to as a base map. See Cadastre.

Manual or computer-based system used to establish, operate, maintain, and analyze facilities, resources and/or activities within a defined geographic area. The LIS also includes the underlying information management infrastructure required to access, apply, update and store this information.

Sub-set of a Planning and Zoning Automated Mapping System.

Latitude describes the angular distance that a location is north or south of the equator. Longitude describes the angular distance that a location is east or west from the prime meridian at Greenwich, England.

Logical grouping of data to be viewed individually or in combination. Similar in concept to transparent acetate overlays of manual spatial information systems. A distinct set of spatial features that are dealt with together.

An explanation of the symbols, codes, names given variables and other information appearing on a map drawing or chart. Includes a sample of each symbol, line pattern, shading, or hatching appearing on the map along with annotations describing the meaning of each.

  1. Distinct set of spatial features that are dealt with together.
  2. Position along a vertical axis; height or depth.
  3. Sub-category of data, for example a subset of soil codes within the overall category.

A variety of smoothing algorithms used to reduce file size by removing excessive turning points along a linear feature according to a user defined filter algorithm. See Filtering.

Click here to expand contentClick here to collapse content  Line

In spatial databases, a linear vector with only a start and end point, containing no intermediary (shape) turning points. A line feature is the alignment between two points representing within a spatial database a real world or theoretical feature, e.g., a road, stream or parcel boundary.

Click here to expand contentClick here to collapse content  LIS

Acronym for Land Information System. Manual or computer-based information system used to store, retrieve, display, and plot spatial and textural data relating primarily to land features and characteristics. Addresses a wide range of existing natural and cultural aspects of land within a mapped area including property ownership, tax assessment, zoning, land use, vegetation, soils, geology, hazardous areas, noise zones, surface and subsurface hydrology, flora and fauna, visually and/or ecologically sensitive areas. Can also include overlays that address infrastructure systems including transportation, sewer, water, storm, electric, cable, and telephone and storm drainage.

  1. Distinct place in the real world.
  2. Position defined by a set of coordinates within a spatial database (i.e. pole, property corner, reported crime incident.)
  3. The storage space of digital data within an information storage system.

Within a utility network topology, if the position setting of a link physically connected to a node is defined as "On" relative to that node, then this link is logically connected to that node.

  1. Database table that assigns display parameters to each value in a field to generate thematic maps.
  2. A list of values that are correlated to a range of other values. For example, according to a soil type name, reference to this table can identify the corresponding compressive strength, percolation, and erosion potential rating.
  3. A file that correlates a user defined ID number permanently assigned to a spatial feature with machine readable ID number that is subject to occasional change.

The quality of computer programming languages or operating system software that enables programs to run on a variety of computers without extensive reprogramming.

Instructions coded so that a computer can recognize and execute them.

Operating System for MacIntosh Personal Computers produced by Apple Computers.

  1. Sequence of commands executed as one command.
  2. Series of specialized procedures or instructions in a computer language that can be replaced by a set of instructions which customize and streamline basic software functions.
  3. Recorded often complex sequence of keystrokes and mouse actions that can be played back with a single or simple combination of keystrokes.

Central Processing Unit, main memory, and control units of a computer typically housed in one large cabinet or in a number of smaller ones grouped together. The term only applies to large computers.

 

Assessor

Dan Anderson

Dan Anderson

Office Location
Courthouse
1230 Main Street
Lewiston, ID 83501

Mailing Address
P.O. Box 896
Lewiston, ID 83501

Phone
208-799-3010

Fax
208-799-3037

E-mail Dan
 

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