| US CMS WBS Dictionary | ||
| Basis of Estimate | ||
| WBS Number: | ||
| WBS Name: | ||
| WBS Definition: | ||
| Estimate Source: | ||
| 1. Summary element (cost from roll-up) | ||
| 2. Vendor estimate | ||
| 3. Bottoms-up analysis | ||
| 4. Manufacturing analysis or standards | ||
| 5. Historical reference | ||
| 6. Parametric estimate | ||
| 7. Top-down analogy | ||
| 8. Engineering judgement | ||
| 9. Other (specify) | ||
| Basis of Estimate: | ||