EVM通过计算成本绩效指标(CPI)和进度绩效指标(SPI)来分析项目绩效。CPI用于衡量成本效率,SPI用于衡量进度效率。 成本绩效指标(CPI)计算公式为EV除以AC,CPI大于1表示成本效率好于预期,小于1则表示成本效率低于预期。 进度绩效指标(SPI)的计算则是EV除以PV,SPI值大于1表示进度超前,小于1则表示进度落后。 这两个指标提供了项目
CPI=BCWP/ACWP或EV/AC 小于1,表示项目实际费用超出预算 4、进度绩效指数SPI(schedule performance index) SPI=BCWP/BCWS或EV/PV 小于1,表示实际进度落后于计划进度 其他概念: EV(earned value),赢得值 AC(actual cost),实际成本 PV(plan value),计划费用 BAC(budget at completion),项目完工预算。编计划时预计...
-成本绩效指数（CPI）：EV / AC，衡量成本效率。-进度绩效指数（SPI）：EV / PV，衡量进度效率。此外...
Cost Performance Index (CPI): This is the ratio of earned value to actual cost. It indicates how efficiently the project is using its budget. A CPI greater than 1 indicates under budget, while less than 1 indicates over budget. Schedule Performance Index (SPI): This is the ratio of earned...
- 成本绩效指数（CPI）：EV / AC，衡量成本效率。- 进度绩效指数（SPI）：EV / PV，衡量进度效率。此外，EVM还涉及预测指标，如预计完成时间（ETC），用于预测项目的未来表现。总的来说，EVM提供了一个量化方法来监控项目绩效，帮助项目管理者及时识别问题并采取行动，确保项目按计划进行。
Cost performance index (CPI) 1. Schedule Performance Index SPI is the resultant value of Earned Value divided by Planned Value. This metric gives the information regarding the project schedule, is the project as per schedule, ahead or behind as per plan. ...
This Excel sheet performs the calculation for earned value and earned schedule analysis. The forecast resulting from all KPIs [time-based SPI, CPI, CPI (internal), CPI (external) and WPI] is calculated based on the different forecast methods proposed by A Guide to the Project Management Body ...
The project manager examines the performance indexes by the Schedule Performance Index (SPI) and Cost Performance Index (CPI). 3. Schedule Performance Index (SPI) It is the ratio of earned value to planned value. SPI is calculated by involving the division of earned value by planned value to...
SPI = EV / PV An SPI greater than 1 means you’re ahead of schedule, less than 1 indicates you’re behind, and an SPI of 1 shows you’re exactly on schedule. 4. Cost Performance Index (CPI) CPI is the ratio of Earned Value to Actual Cost, measuring how cost-efficient your project...
首先挣值管理主要针对成本的计算和预测，对进度这个维度涉及得很少；里面除了SPI、CPI和TCPI三个绩效指数指标，其他所有变量指标包括PV、EV、AC、SV、CV、BAC、ETC、EAC和VAC都是以货币价值为单位（多少钱）。除了SV和SPI是关于进度的指标，其他指标基本都是成本相关的，比如ETC和EAC都是预测项目完工还需要多少成本和...