HTTP Message
Definition: consist of requests from client to server and responses from server to client. IETF:RFC-2616
Note: In MTConnect Standard, it describes the information that is exchanged between an agentsoftware that collects data published from one or more piece(s) of equipment, organizes that data in a structured manner, and responds to requests for data from client software systems by providing a structured response in the form of a response document that is constructed using the semantic data model of a Standard. and a clientapplication that sends request for information to an agent. > Note: Examples include software applications or a function that implements the request portion of an interface interaction model. .