Method123

When you create a schedule you generally don’t know enough to enter all of the detailed activities the first time though. Instead, you identify large chunks of work first, and then break the larger chunks into smaller pieces. These smaller pieces are, in turn, broken down into still smaller and more discrete activities. This technique is referred to as creating a Work Breakdown Structure (WBS). A question people ask is how small the activities should be before they do not need to be broken down further. This is referred to as your “estimating threshold”. Work can be broken down into smaller activities than the estimating threshold, but normally no work would be left at a higher level. The threshold can be different based on the size of your project and how well the work is understood. You can use the following criteria as a guide. For a typical large project (say 5000 effort hours or more) the activities should be no longer than two weeks. Medium and small projects (say 1000 effort hou...

Estimating is hard enough. It is even harder if you are not prepared. Estimating a 20 hour chunk of work is not so hard. Estimating for full projects or large chunks of work can be challenging. Templates can help, but consider the following steps before you begin the estimating process. Get a clear picture of the work that is being estimated Many problems with estimation come because the estimator is not really sure what the work entails. You should avoid estimating work that you do not understand. This should not imply that you can know every detail. The estimating contingency is a way to reflect some of this remaining uncertainty. Determine who should be involved in the estimating process The project manager may or may not know enough to make the estimates on his or her own. It is usually a good practice to look for estimating help from team members, clients, subject matter experts, etc. This will usually result in the estimates being far more accurate than you would get by yourself....