| A | B |
|---|
| Estimate Resources | This is a process of estimating the type and quantities of material, etc |
| Schedule Management Plan | Identifies the level of accuracy and the units of measure for the resources to be estimated |
| Activity List | Identifies the activities which will need resources |
| Activity Attributes | Primary data input for use in estimating those resources required for each activity in the activity list |
| Bottom-Up Estimating | When an activity cannot be estimated with a reasonable degree of confidence, the work within the activity is decomposed into more detail. |
| Project Management Software | Has the capability to help plan, organize, and manage resource pools and develop resource elements |
| Analogous Estimating | Uses parameters such as duration, budget, size, weight and complexity, from a previous, similar project, |
| Parametric Estimating | Uses a statistical relationship between historical data and other variables to calculate an estimate for activity parameters, such as cost, budget, and duration. |
| PERT | Program Evaluation and Review Technique |
| Three-point estimates | The accuracy of activity duration estimates can be improved by considering estimation uncertainty and risk. |
| Most Likely(tM) | realistic expectations |
| Optimistic (tO) | best-case scenario |
| Pessimistic (tp) | worst-case scenario |
| Expected Time | tE=(tO+4tM+tP)/6 |
| Reserve Analysis | Duration estimates may include contingency reserves (knowns and unknowns) |
