Reference → Glossary → C → CSI (field)
Cost schedule index. The difference in value between the cost performance index and schedule performance index. The calculation for cost schedule index is as follows: CSI = CPI x SPI. Cost schedule index should be as close to 1 as possible. When the cost schedule index is not one, it is an indicator that the task plan is behind schedule and over budget. The farther away from 1, the farther behind and/or over budget the task plan is.
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