A small, self-contained computer program that usually performs a task as part of, or under the control of, a larger software application. For example, most modern World Wide Web browsers are capable of making use of applets written in the Java programming language to perform simple tasks such as display animations or more complex tasks such as spreadsheet and database… (Read More →)

1. Software that embodies the primary logic characterizing and supporting an end-user service and its features. Such an application may reside on an application server (AS) within a service provider's network or may be a 3rd Party application outside of a service provider network.
2. Software on user devices providing something of value consumed by the end user. e.g., Microsoft… (Read More →)

A cooperative relationship between two application entities, formed by their exchange of application protocol control information through their use of presentation services. [T1.215-1990]

The system-independent application activities that are made available as application services to the application agent, e.g., a set of application service elements that together perform all or part of the communication aspects of an application process. [T1.667-1999]

See Open Systems Interconnection--Reference Model.

Synonym platform.

See application.

1. A formalized set of software calls and routines that can be referenced by an application program in order to access supporting network services.
2. The interface between the application software and the application platform, across which all services are provided. The application program interface is primarily in support of application portability, but system and application interoperability are also supported… (Read More →)

A set of rules and formats (semantic and syntactic) that determines the communication behavior of application entities in the performance of application functions. [T1.208-1989]

1. An application server is a physical computer or software only that supports a runtime environment for applications. The system software is an intrinsic part of the application server. Application servers ease application development by providing a suite of system software building blocks.
2. A physical computer that supports a runtime environment for applications. The system software is an intrinsic… (Read More →)