Problem Statement: Software Quality Metrics

The junior team member was asked to calculate different metrics related to software quality. The project data given to him was about a recently completed project related to Customer Relationship Management (CRM). After careful evaluation of the work completed by your team member, you have come to know that it is not completed as it should be and have some mistakes.

Following is the data given for metrics calculation:

Total number of test cases developed by the testing team was 900. Due to shortage of time, only 850 test cases were executed and the testing team reported 700 different defects. The project management officials marked 90 defects as rejected. After successful deployment of this project in production environment which took nearly 3000 development hours and 2100 hours to complete all the testing efforts, the issues reported by client were 80 out of which 20 were of understanding issues and were marked as rejected. All the source code related to this project retrieved from Bit Bucket showed 199,500 source lines of code (SLOC).

Following is the calculation made by your junior team member.

DRE=0.089552

Defect Slippage Ratio=11.43%

Test Case Defect Density=71.76%

Required:

[03 marks] Identify and calculate the metrics which have been missed out by the team member.

[03 marks] Check the calculations done by your team member and find out the mistakes (if any).

[01 mark] What could be done to improve the defect removal efficiency?

[01 mark] Metrics can be broadly classified into three main types. In which type we can put DRE into?