1.项目评估和审查技术(PERT)：
PERT 是一种合适的技术，用于完成不同活动所需或需要的时间未知的项目。 PERT 主要用于项目中不同任务的调度、组织和集成。它提供了项目的蓝图，是项目评估的有效技术。
2. 关键路径法(CPM)：
CPM 是一种用于项目完成所需时间已知的技术。它主要用于确定项目可以完成的大致时间。关键路径是项目管理中最大的路径，它总是提供完成项目所需的最短时间
PERT 和 CPM 的区别：
| S.No. | PERT | CPM | |||
|---|---|---|---|---|---|
| 1. | PERT is that technique of project management which is used to manage uncertain (i.e., time is not known) activities of any project. | CPM is that technique of project management which is used to manage only certain (i.e., time is known) activities of any project. | |||
| 2. | It is event oriented technique which means that network is constructed on the basis of event. | It is activity oriented technique which means that network is constructed on the basis of activities. | 3. | It is a probability model. | It is a deterministic model. |
| 4. | It majorly focuses on time as meeting time target or estimation of percent completion is more important. | It majorly focuses on Time-cost trade off as minimizing cost is more important. | |||
| 5. | It is appropriate for high precision time estimation. | It is appropriate for reasonable time estimation. | |||
| 6. | It has Non-repetitive nature of job. | It has repetitive nature of job. | |||
| 7. | There is no chance of crashing as there is no certainty of time. | There may be crashing because of certain time boundation. | |||
| 8. | It doesn’t use any dummy activities. | It uses dummy activities for representing sequence of activities. | 9. | It is suitable for projects which required research and development. | It is suitable for construction projects. |