GIS Glossary/J

GIS Glossary

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J2ME
The Java platform edition developed by Sun Microsystems for small, stand-alone, or connectable devices. Java ME enables development, deployment, and management of applications that can scale from mobile devices to desktop computers. In 2007, Sun replaced J2ME with Java ME.

jaggies
The jagged appearance of curves and diagonal lines in a raster image. Aliasing becomes more apparent as the size of the raster pixels is increased or the resolution of the image is decreased.

Java
An object-oriented cross-platform programming language developed by Sun Microsystems.

Java 2 Platform, Micro Edition
The Java platform edition developed by Sun Microsystems for small, stand-alone, or connectable devices. Java ME enables development, deployment, and management of applications that can scale from mobile devices to desktop computers. In 2007, Sun replaced J2ME with Java ME.

Java Connector
An ArcIMS Application Server Connector. It can be used with Java Server Pages (JSP) or as part of a Java applet or application.

Java ME
The Java platform edition developed by Sun Microsystems for small, stand-alone, or connectable devices. Java ME enables development, deployment, and management of applications that can scale from mobile devices to desktop computers. In 2007, Sun replaced J2ME with Java ME.

Java ME Wireless Toolkit
A toolkit for building applications that run on devices compliant with the Java specification for wireless devices.

Java viewer
An ArcIMS viewer that uses a Java 2 applet. The Java viewer can be used with feature or image services. It allows client-side drawing and editing and requires a Java plug-in.

JavaScript
A scripting language that runs within a Web browser and interacts with HTML code to enable Web developers to add functionality to their Web sites.

JavaServer Faces
A framework for building user interfaces for Java Web applications.

JavaServer Pages
A Java technology that enables rapid development of platform-independent, Web-based applications. JSP separates the user interface from content generation, enabling designers to change the overall page layout without altering the underlying dynamic content.

JavaServer Pages Standard Tag Library
A Java technology that encapsulates core functionality common to many Web-based applications as simple tags. JSTL includes tags for structural tasks such as iteration and conditionals, manipulation of XML documents, internationalization and locale-sensitive formatting, and SQL.

JDK
Acronym for Java Development Kit. A set of Java development tools from Sun Microsystems that provide basic tools needed for writing, testing, and debugging Java applications and applets.

Jenks' optimization
A method of statistical data classification that partitions data into classes using an algorithm that calculates groupings of data values based on the data distribution. Jenks' optimization seeks to reduce variance within groups and maximize variance between groups.

job
A task scheduled on a computer for immediate or future processing. A job can involve a single task or a batch mode operation.

job book
In Survey Analyst - Cadastral Editor, a tool that facilitates the viewing and management of cadastral fabric jobs.

Job Tracking for ArcGIS
ESRI software used to track and manage database production workflow. It provides the ability to define tasks, set up production environments, manage geodatabase versioning and track database changes at the feature level. JTX also provides tools for allocating resources and tracking the status and progress of jobs.

JOG
Acronym for joint operations graphic. A 1:250,000-scale topographic map used by militaries worldwide. Joint operations graphics use a common base graphic to facilitate operations involving air, ground, and naval forces.

joined parcel
In Survey Analyst - Cadastral Editor, a parcel that is connected to the cadastral fabric, and shares common points with neighboring parcels.

joining
Appending the fields of one table to those of another through an attribute or field common to both tables. A join is usually used to attach more attributes to the attribute table of a geographic layer.

joint operations graphic
A 1:250,000-scale topographic map used by militaries worldwide. Joint operations graphics use a common base graphic to facilitate operations involving air, ground, and naval forces.

JPEG
Acronym for Joint Photographic Experts Group. A lossy image compression format commonly used on the Internet. JPEG is well-suited for photographs or images that have graduated colors.

JSF
A framework for building user interfaces for Java Web applications.

JSON
Acronym for JavaScript Object Notation. A lightweight, human-readable data interchange format. An alternative to XML, JSON is language independent but relies on common programming language structures such as objects and arrays.

JSP
Acronym for JavaServer Pages. A Java technology that enables rapid development of platform-independent, Web-based applications. JSP separates the user interface from content generation, enabling designers to change the overall page layout without altering the underlying dynamic content.

JSTL
A Java technology that encapsulates core functionality common to many Web-based applications as simple tags. JSTL includes tags for structural tasks such as iteration and conditionals, manipulation of XML documents, internationalization and locale-sensitive formatting, and SQL.

JTX
Acronym for Job Tracking for ArcGIS. ESRI software used to track and manage database production workflow. It provides the ability to define tasks, set up production environments, manage geodatabase versioning and track database changes at the feature level. JTX also provides tools for allocating resources and tracking the status and progress of jobs.

junction
For network data models in a geodatabase, a point at which two or more edges meet.

junction connectivity policy
In network datasets, a connectivity policy that defines how a junction may connect to an edge. There are two junction connectivity policies: honor and override.

junction element
For network data models in a geodatabase, a point at which two or more edges meet.