Description
Subtract crashDays from normalDays for positive daysSaved.
A cost term combines quantities with rates on a consistent currency and time basis. A supplied multiplier or reimbursement changes accounting without determining an entitlement or market price.
Subtract crashDays from normalDays for positive daysSaved.
When to use this tool
Use Project Schedule Compression Cost Slope when you need an explicit labor, time, or project-cost component.
How to use the tool and how it works
- Enter normalDays, crashDays, normalCost, crashCost. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read daysSaved, costSlope. Use the output convention below.
Subtract crashDays from normalDays for positive daysSaved. Divide crashCost - normalCost by daysSaved for costSlope, requiring nondecreasing cost.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| normalDays | Normal Days | Required. Finite number. |
| crashDays | Crash Days | Required. Finite number; minimum 0. |
| normalCost | Normal Cost | Required. Finite number; minimum 0. |
| crashCost | Crash Cost | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| daysSaved | Days Saved | Required. Finite number. |
| costSlope | Cost Slope | Required. Finite number. |
{
"input": {
"normalDays": 10,
"crashDays": 6,
"normalCost": 1000,
"crashCost": 1600
},
"output": {
"daysSaved": 4,
"costSlope": 150
}
}Limitations and assumptions
- This is an average linear compression slope between two supplied options, not a critical-path optimization or feasibility assessment.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Reconcile the full cost model and relevant contractual or payroll policy before treating a component as a final charge.
References
Similar or alternative tools
- Task Split Context Overhead Term
Charge setupPerSegment for every segment and switchCost for segments minus one.
- Critical Ratio Remaining Work Days
Divide signed daysToDue by positive remainingWorkDays for criticalRatio and subtract remaining work from days to due for slackDays.