Due to the fact that key path activities have no float, if they are delayed, the project's duration will also be postponed. There is no way to put off the key path activity while still finishing the project on schedule.
Implementing the specifics of your project charter is what project management's execution phase entails in order to deliver your goods or services to customers. Project planning occurs first, followed by project execution. The project's execution is managed, and its advancement is monitored against the strategy set forth during project planning. Performance is compared to the project plan, and adjustments are made as needed, to ensure the project maintains on schedule, within scope, and within budget.
The project length will be delayed by the same amount of time as the critical path activities because they have no float. The key path activity cannot be delayed in order to finish the project on schedule.
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