Milestones are generally considered to be: Key project review gates. Points where two or more activities merge. Demotivators for the project team. The end of the project for all team members except the project manager.

Key project review gates.

Explanation:

Solution

Project Gates are important points in a project where an approved review of the project's present state is executed.

Most times they appear at the phase transitions of projects and constitute a point in the project where the sponsor and stakeholders will sustain increased risk, expense, and reward.

When a project Gate occurs, a Gate Review is done to decide if the project should continue or not and under what conditions.

Its motive is to provide risk review, Information on status of project,  problems solving, cost review, performance schedule, and enables communication among the project team.

answer; specific performance;

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