API - Revision history

NeilArmstrong: Added glossary link to Application~

2012-02-22T12:01:10Z

Added glossary link to Application~

← Older revision		Revision as of 12:01, 22 February 2012
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	An '''Application Programmer Interface''' (also called an API) is a way for a computer program to communicate what services it is willing to provide to other programs.		An '''[[Application~\|Application]] Programmer Interface''' (also called an API) is a way for a computer program to communicate what services it is willing to provide to other programs.

	A program that calls an API is one which uses the services provided.		A program that calls an API is one which uses the services provided.

152.131.9.69 at 20:18, 25 May 2005

2005-05-25T20:18:57Z

← Older revision		Revision as of 20:18, 25 May 2005
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	* "Private" or "Controlled" which means that they can be used after being formally registered as a "subscriber".		* "Private" or "Controlled" which means that they can be used after being formally registered as a "subscriber".

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Forummgr at 21:29, 24 May 2005

2005-05-24T21:29:37Z

← Older revision		Revision as of 21:29, 24 May 2005
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	Generally, an API will list what services are provided, what inputs are needed, and what output is produced.		Generally, an API will list what services are provided, what inputs are needed, and what output is produced.

			There are hundreds of APIs in VisTA that are documented in the files at:
			ftp://ftp.va.gov/vista/Software/Integration%20Agreements/

			VistA APIs (also called [[VistA IA List\| Integration Agreements]] )
			are
			* "Supported" which means they can be used without registering as "subscribers" of the APIs.
			* "Private" or "Controlled" which means that they can be used after being formally registered as a "subscriber".

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207.207.8.173 at 22:46, 16 March 2005

2005-03-16T22:46:19Z

← Older revision		Revision as of 22:46, 16 March 2005
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	Generally, an API will list what services are provided, what inputs are needed, and what output is produced.		Generally, an API will list what services are provided, what inputs are needed, and what output is produced.

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152.131.9.69 at 22:45, 16 March 2005

2005-03-16T22:45:35Z

← Older revision		Revision as of 22:45, 16 March 2005
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	Generally, an API will list what services are provided, what inputs are needed, and what output is produced.		Generally, an API will list what services are provided, what inputs are needed, and what output is produced.

			<!-- testing comments !-->

152.131.9.69 at 16:52, 7 March 2005

2005-03-07T16:52:21Z

New page

An '''Application Programmer Interface''' (also called an API) is a way for a computer program to communicate what services it is willing to provide to other programs.

A program that calls an API is one which uses the services provided.
A program that defines an API is one which provides the services.

An API is usually contrasted to a User Interface (UI) which is a service provided to a person who is using the computer to accomplish tasks. Typically UIs are either text based ([[CHUI]]) or graphics based ([[GUI]]).

Generally, an API will list what services are provided, what inputs are needed, and what output is produced.