(Joint Application Development) An approach to systems analysis and design introduced by IBM in the late 1970s that emphasizes teamwork between user and technician. Small groups meet to determine system objectives and the business transactions to be supported. The meetings are run by a neutral facilitator who can move the group toward well-defined goals. Results include a prototype of the proposed system. See RAD.
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| Wikipedia: JAD (file format) |
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| Filename extension | .jad |
|---|---|
| Internet media type | text/vnd.sun.j2me.app-descriptor |
| Developed by | Sun Microsystems, Inc. |
| Type of format | description |
| Standard(s) | Java application |
Java Application Descriptor (JAD) files describe the MIDlets (Java ME applications) that are distributed as JAR files.
Contents |
MIDlet-1: <Application name>, <icon path>, <midlet class>
MIDlet-Jar-Size: <Size in bytes>
MIDlet-Jar-URL: <Associated JAR file>
MIDlet-Name: <Application name>
MIDlet-Vendor: <Company>
MIDlet-Version: <Application version number>
MicroEdition-Configuration: <CLDC version>
MicroEdition-Profile: <MIDP version>
JAD files are commonly used to package Java applications or games that can be downloaded to mobile phones. Java applications enable Mobile phones to interact programmatically with online web services, such as the ability to send SMS messages via GSM mobile internet or interact in multiplayer games. Some BlackBerry devices use JAD files for themes.
Recent midlets contain a manifest file in the JAR archive. This file contains much of the information stored in the JAD file, rendering it unnecessary in most cases.
The Midp2 specification instructs that web servers should serve JAD files with a mime_type of "text/vnd.sun.j2me.app-descriptor". If this mime type is not correctly configured, many phones will fail to install the midlet.
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