It’s a matter of setting the right expectations and determining how much work is realistic to complete in a given timeframe-teams need to account for a project’s complexity in order to decide the amount of effort required, the number of resources needed, and ultimately, how much time it will take to complete the project. If estimates can be inaccurate, why are they important to project planning?
Chances are that you’ve had the experience of being given an estimate that turned out to be completely wrong-the car wasn’t repaired in two days or the table at the restaurant wasn’t ready in 15 minutes.
