Activities and operations

An activity is a discrete action performed on behalf of a message by an application. The following are examples of activities:

Activities consist of one or more operations. Operations are single pieces of work performed by applications. For example, the activity of an MCA sending a message from a transmission queue down a channel, consists of the following operations:

  1. Getting a message from a transmission queue. (A get operation).

  2. Sending the message down a channel. (A send operation).