SOFTWARE ENGINEERING

Detailed explanation-1: -Explanation: An activity is a physically identifiable part of a project, which consumes both time and resources. The particular task performance in CPM is known as activity. Activity is represented by an arrow in a network diagram.

Detailed explanation-2: -CPM or the Critical Path Method is an algorithm used in project management that is used to schedule project activities. The critical path refers to the longest stretch of the activities, and a measure of them from start to finish.

Detailed explanation-3: -PERT stands for Program Evaluation Review Technique, a methodology developed by the U.S. Navy in the 1950s to manage the Polaris submarine missile program. A similar methodology, the critical path method (CPM) was developed for project management in the private sector at about the same time.

Detailed explanation-4: -The start or completion of task is called. an event.