Test Estimation

There are two techniques used for test estimation

Metric Based approach

Relies upon data collected from previous or similar projects Ex if previous project was 1000 hrs long and testing was done for 300 hrs and bugs found were 50 so if our current project is 2000 hrs then testing should be around 600 hrs and number of defects around 1000. The data to be collected from previous projects should include

  1. No o f test conditions

  2. No of test cases written

  3. No of test cases executed

  4. Time taken to develop test cases

  5. Time taken to run test cases

  6. No of bugs found

Expert Based Approach Approach relies on the experience of experts of relevant task The experts re

  1. BA

  2. Developers

  3. Analysts and Designers

  4. Testers