Metric:It is the combination of measurements
Some important testing metrics:
1)Schedule variance=(Actual time taken-planed time)/planed time*100
2)Effort variance=(Actual effort-Planned Effort)/Planned effort * 100
3)Test Case coverage =(Total Test Cases – Requirements that cannot mapped to test cases)/Total Test cases * 100
4)Customer Satisfaction= number of complaints/Period of time
5)Test Case effectiveness = The extent to which test cases are able to find defect.
6) Time to find a defect = The effort required to find a defect
7) Defect Severity = business impact= effect on the end user
8)Test Coverage = To which test case covers the products complete functionality.
9)Defect Severity index = An index representing the average of the severity of the defect.
10)Time to Solve a Defect = Effort Required to resolve the a defect
11)No Of Defect = The Total number of defects found in time
12)Defects/KLOC = The number of defects per 1000 lines of code
13)Defect severity = The severity level of a defect indicates the potential business impact for the end user.
(business impact = effect on the end user)
14) Time to find the defect= The effort required to find a defect.
15)Time to solve a defect =Effort required to resolve a defect (diagnosis and correction)
16)Test coverage =Defined as the extent to which testing covers the product’s complete functionality.
17) Test case effectiveness = The extent to which test cases are able to find defects.
18) Defect Age=Fixed date-Reported date
19)Defect Density=Number of defects in the module.
20) Defect cost= Cost to analyze the defect + Cost to fix it+ Cost of failures already incurred due to it.
21) Bug clearance Ratio =The ratio between valid & Invalid bugs
22) DRE (Defect Removal Efficiency)=A / A+B
A- Defects found by testing team (Fixed Defects)
B- Defects found by customers (Missed Defects)
