How to calculate Quality of fixes ?

Quality of fixes is the ratio of difference of Total no. of Defects reported as fixed and Total no. of reopened defects to sum of Total no. of Defects reported as fixed and Total no. of new defects due to fix.

Quality of fixes metric is used to determine the quality of fix done by development team. Lower the value indicates the poor quality of defect fixes.

It is measured during each build and end of test execution phase.

How to calculate the Quality of fixes:

Quality of fixes = (Total no. of Defects reported as fixed -Total no. of reopened defects) / (Total no. of Defects reported as fixed + Total no. of new defects due to fix)*100

Example:

Total no. of fixed defects	Total no. of reopened defect	Total no. of new defects due to fix	Quality of fixes
100	5	2	93.13

Quality of fixes = (100-5) / (100+2) * 100

                           = 93.13 %

How to calculate Error Discovery Rate ?

Error Discovery Rate is the ratio of Total no. of defects found in application to Total no. of test cases or scripts executed.

Error Discovery Rate metric is used to determine the effectiveness of the test cases and measured at test execution phase.

How to calculate Error Discovery Rate:

Error Discovery Rate = Total no. of defects found in application /Total no. of test cases or scripts executed

Example:

Total no. of defects found in application	Total no. of test cases or scripts executed	Error Discovery Rate
250	1000	0.25

Error Discovery Rate = 250 /1000

                                      = 0.25 Defects/ Test Cases

How to calculate Test Execution Coverage ?

Test Execution Coverage is the ratio of Total no. of test cases or scripts executed to Total no. of test cases or scripts planned to execute.

Test Execution Coverage is used to determine the coverage of testing and measured at test execution phase.

How to calculate Test Execution Coverage:

Test Execution Coverage = Total no. of test cases or scripts executed / To Total no. of test cases or scripts planned to execute *100

Example:

Total no. of test cases or scripts executed	To Total no. of test cases or scripts planned to execute	Test Execution Coverage
990	1000	99

Test Execution Coverage = 990 / 1000 * 100

                                              = 99 %

How to calculate Test Effectiveness ?

Test Effectiveness is the ratio of difference of Total no. of application defects found by test team and Total no. of application defects rejected by the customer/developer to sum of Total no. of application defects found by test team and Total no. of defects found by customer/test team during UAT.
Test Effectiveness  metric is used to measure the test effectiveness of test team and is calculated at the end of test execution phase.

How to calculate Test Effectiveness:

Test Effectiveness = (Total no. of application defects found by test team - Total no. of application defects rejected by the customer/developer) / (Total no. of application defects found by test team + Total no. of defects found by customer/test team during UAT) *100

Example:

Total no. of defects found by test team	Total no. of defects Rejected by Customer/Dev team	Total no. of defects found by customer/test team during UAT	Test Effectiveness
80	5	2	91.46

   Test Effectiveness = (80-5) / (80+2) * 100

                                 = 91.46 %

How to calculate Test Design Coverage ?

Test Design Coverage is the ratio of Total number of testable requirements mapped to test cases or Scripts to Total number of base lined testable requirements. This metric helps to measure the functional coverage of test cases designed and improve the test coverage.

Test Design Coverage  is calculated at test design phase. It is measured in percentage (%).

How to calculate Test Design Coverage:

Test Design Coverage = (Total number of testable requirements mapped to test cases or Scripts) / (Total number of base lined testable requirements)*100

Total no.of base lined testable requirements mapped to test cases	Total no. of base lined testable requirements	Test Design Coverage
990	1000	99

Test Design Coverage = 990 / 1000 *100

                                     =   99 %

Risk Mitigation Efficiency

Risk Mitigation Efficiency is the ratio of difference of Total No. of Risk identified for mitigation and Total No. of Risk mitigated but occurred to Total No. of Risk identified for mitigation. This metric helps to mitigate risks and take further actions.

Risk Mitigation Efficiency is calculated as overall project level.

How to calculated Risk Mitigation Efficiency:

Risk Mitigation Efficiency % = (Total no of Risks Identified for mitigation – Total No. of Risk mitigated but occurred) / (Total no of Risks Identified for mitigation) * 100

Total no. of Risks Identified for mitigation	Total No. of Risk mitigated but occurred	Risk Identification Efficiency %
5	1	80

 

Risk Mitigation Efficiency % = (5-1) / 5 *100

                                                  = 80 %