Acronym for Transmission Control Protocol/Internet Protocol. One of the most commonly used protocol suites on the Internet, TCP/IP provides both connection-oriented (TCP) and connectionless (IP) data transfer. TCP is a transport layer protocol built on top of IP and handles flow control, multiplexing, and error control. IP is a network layer protocol that handles packet switching, fragmentation, and routing.
A model for organizing the efforts of a development team built around the concept of a small team of peers working in interdependent, cooperating roles. The team model's six specific roles include Product Management, Program Management, Development, Test and Quality Assurance, User Education, and Logistics Planning. This model offers ownership of processes to team members, who can perform more than one role or share a role with other members, depending on the size of the team and the project.
A process through which a client computer can interact with a host as if the client were a mainframe terminal. The application is displayed on the client the way it looks on a terminal screen, with some of the advantages of graphical user interface, such as windowing, screen print, and other basic services.
A logical application model in which the business application's features are expressed in terms of three categories of services: user services, business services, and data services. This is a conceptual architecture describing the functionality the application is designed to deliver, rather than its implementation in a physical package.
A unit of work that is done as an atomic operation — that is, the operation succeeds or fails as a whole.