Reserve Analysis

Reserve time—also called buffers, time reserves, or contingency reserve in the PMBOK® Guide —means a portion of time that is added to the activity to account for schedule risk or uncertainty. You might choose to add a percentage of time or a set number of work periods to the activity or the overall schedule. For example, you know it will take 100 hours to run new cable based on the quantitative estimate you came up with earlier. You also know that sometimes you hit problem areas when running the cable. To make sure you don't impact the project schedule, you build in a reserve time of 10 percent of your original estimate to account for the problems you might encounter. This brings your activity duration estimate to 110 hours for this activity.

Project Management Made Easy

Project Management Made Easy

What you need to know about… Project Management Made Easy! Project management consists of more than just a large building project and can encompass small projects as well. No matter what the size of your project, you need to have some sort of project management. How you manage your project has everything to do with its outcome.

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