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Protocol (object-oriented programming), a common means for unrelated objects to communicate with each other (sometimes also called interfaces) Communication protocol, a defined set of rules and regulations that determine how data is transmitted in telecommunications and computer networking Cryptographic protocol, a protocol for encrypting messages
A communication protocol is a system of rules that allows two or more entities of a communications system to transmit information via any variation of a physical ...
In international politics, protocol is the etiquette of diplomacy and affairs of state. It may also refer to an international agreement that supplements or amends a treaty. A protocol is a rule which describes how an activity should be performed, especially in the field of diplomacy. In diplomatic services and governmental fields of endeavor ...
The protocols in use today in this layer for the Internet all originated in the development of TCP/IP. In the OSI model the transport layer is often referred to as Layer 4, or L4, [2] while numbered layers are not used in TCP/IP. The best-known transport protocol of the Internet protocol suite is the Transmission Control Protocol (TCP).
Protocol engineering is the application of systematic methods to the development of communication protocols. It uses many of the principles of software engineering, ...
Protocol stack of the OSI model. The protocol stack or network stack is an implementation of a computer networking protocol suite or protocol family.Some of these terms are used interchangeably but strictly speaking, the suite is the definition of the communication protocols, and the stack is the software implementation of them.
An application layer is an abstraction layer that specifies the shared communication protocols and interface methods used by hosts in a communications network. [1] An application layer abstraction is specified in both the Internet Protocol Suite (TCP/IP) and the OSI model. [2]
Protocol originally (in Late Middle English, c. 15th century) meant the minutes or logbook taken at a meeting, upon which an agreement was based. The term now commonly refers to an agreement resulting from a meeting, or more generally to any established procedure in an organisation or group, such as a laboratory protocol in scientific research, or a data transfer protocol in computing, or ...