A schedule is a model for executing the project’s activities, including durations, dependencies, and other planning information. Schedule planning can use predictive or adaptive approaches.

Predictive approaches follow a stepwise process as follows:

▶ Step 1. Decompose the project scope into specific activities.
▶ Step 2. Sequence related activities.
▶ Step 3. Estimate the effort, duration, people, and physical resources required to complete the activities.
▶ Step 4. Allocate people and resources to the activities based on availability.
▶ Step 5. Adjust the sequence, estimates, and resources until an agreed-upon schedule is achieved.

If the schedule model does not meet the initial desired end date, schedule compression methods are applied.

The Standard For Project Management And A Guide To The Project Management Body Of Knowledge (Pmbok® Guide) Seventh Edition