GIS Dictionary

scale

1 The ratio or relationship between a distance or area on a map and the corresponding distance or area ...

scale

1 The ratio or relationship between a distance or area on a map and the corresponding distance or area ...

scanning

The process of capturing data from hard-copy maps or images in digital format using a device called a scanner.

schema

1 The structure or design of a database or database object, such as a table, view, index, stored procedure, ...

SCM

Acronym for Service Control Manager. An administrative tool that enables the creation and modification of system services. It effectively ...

SDC dataset

A collection of Smart Data Compression (SDC) feature classes sharing attribute information with different geometries. An SDC dataset ...

SDE user

The account used to administer ArcSDE. The SDE user requires certain advanced database privileges to configure and manage ...

sdesetup

A program run by a database administrator during ArcSDE installation or upgrade. The sdesetup program creates or upgrades ...

SDI

Acronym for spatial data infrastructure. A framework of technologies, policies, standards, and human resources necessary to acquire, process, ...

SDK

Acronym for software development kit. A set of code libraries and related tools used to develop platform-specific applications.

SDTS

Acronym for Spatial Data Transfer Standard. A data exchange format for transferring different databases between dissimilar computing systems, preserving ...

seamline

In ArcGIS Image Server, a polygon that defines the mosaic boundary of the raster dataset used in an ...

seat

In software licensing, the number of simultaneous instances of software that can be used at one time. Most often, ...

segment

In ArcGIS, a geometric element from which paths are constructed. A segment consists of a start point, an ...

selection file

An ArcInfo Workstation file that stores the specifications of the selection criteria to be applied against specific coverages ...

sensor

An electronic device for detecting energy, whether emitted or radiated, and converting it into a signal that can ...

server

1 A computer that manages shared resources, such as disks, printers, and databases, on a network. 2 Software ...

service

1 A persistent software process that provides data or computing resources for client applications. 2 In ArcWeb ...

service credit

The currency for ArcGIS Online. Service credits are consumed when using certain functions, for example spatial analysis, routing, ...

service table

In ArcGIS Image Server, a table defining links to multiple raster datasets and some service-specific attributes, including display ...

servlet

A Java platform technology for extending Web servers that provides a component-based, platform-independent method for building Web-based applications.

servlet engine

A Java platform technology that interfaces with a Web server and hosts servlets. Servlet engines provide a common application ...

sextant

A handheld navigational instrument that measures, from its point of observation, the angle between a celestial body and the horizon ...

SGML

Acronym for Standard Generalized Markup Language. A markup language with a predefined vocabulary and structure. SGML is used to ...

SHA1

Acronym for Secure Hash Algorithm v1. A Federal Information Processing Standards (FIPS) method for encoding sensitive information before sending ...

shading

Graphic patterns such as cross hatching, lines, or color or grayscale tones that distinguish one area from another on a ...

shape

The characteristic appearance or visible form of a geographic object as represented on a map. A GIS uses ...

shapefile

A vector data storage format for storing the location, shape, and attributes of geographic features. A shapefile is ...

shield

A map symbol that serves as a route marker. Shields come in many varieties, but the most common shields ...

signal

1 Information conveyed via an electric current or electromagnetic wave. 2 The modulation of an electric current, ...

sill

A parameter of a variogram or semivariogram model that represents a value that the variogram ...

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