Basic Defect Density Prediction Models

The Basic defect density predictions models are part of all Frestimate Editions. 

  • A defect density prediction model based on a lookup table of Capability Maturity assessment
  • A defect density prediction model based on a lookup table of the application or industry type
  • Ability to use your own historical defect density data
  • This model is recommended in the 2016 IEEE Recommended Practices for Software Reliability.
Screenshots

 Historical defect density data can be the most accurate if it's collected and normalized properly.

predict defects with historical dataPredict defect density with historical data

 

The defect density lookup tables are very simple but consequently can also be the least accurate.  The tables work well for vendor or commercially supplied software components or for a quick assessment.

SEI CMMi defect density predictionApplication type defect density