SEE 05 Software cost metrics & control

Software cost metrics & control

5.1 Software Cost Metrics

Software development cost measurement should be
conducted at the following time points:

• Requirement completion
• Design completed
• Coding completed
• Completion of internal testing
• After the project is completed
• At the time point when software sizing must be performed

5.2 Analysis of Software Cost

• Cost composition
• Cost estimation deviation
  Earned Value Analysis (EVA) can be used to measure and analyze cost estimation deviations.
• Regression of cost estimation equation and analysis of key
  influencing factors of cost

5.3 EVA method in software cost M & C

Basic parameters of earned value analysis method:

• Planned Value (PV)
• Actual Cost (AC)
• Earned Value (EV)

evaluation indicators:

• Schedule Deviation (SV) = EV – PV
• Cost Deviation (CV) = EV – AC
• Cost Execution Index (CPI) = EV/AC
• Progress Performance Indicators (SPI) = EV/PV