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IT & Tech Intermediate

Software Testing & QA Metrics: Defects, Coverage & Release Readiness

Run the numbers a test manager reports every day: execution status, defect density, defect removal efficiency, severity × priority matrix, defect ageing, test estimation, requirement coverage and a Go/No-go release checklist, every cell checked live.

8 lessons 8 labs 1.8 h Certificate

  • One-time payment
  • 14-day money-back guarantee
  • Secure checkout with Stripe

What you'll build

What you will be able to do

Each lab ends with a concrete result that you build yourself and the checker confirms, cell by cell.

  • Turn Fernhill Software's test log for TaskPilot 5.2 into the daily status report: tests per status, the share of the plan, executed and passed tests per module and the pass rate.
  • Compare TaskPilot's six modules fairly by defects per thousand lines of code, find the hotspot module and estimate how many defects the next release will bring.
  • Calculate the defect removal efficiency (DRE) of four TaskPilot releases, weight it correctly over all releases and see which test phase let the most defects slip through.
  • Cross-tabulate 30 TaskPilot defects by severity and priority with COUNTIFS, count the open ones, condense the mix into a defect severity index and chart the matrix.
  • Turn the opened and fixed dates of 16 TaskPilot defects into days to fix, the age of the open ones, the mean time to fix per severity and an ageing report.
  • Estimate the system test of TaskPilot 5.3 bottom-up: test cases per feature from its requirements and complexity, design and execution hours, effort with contingency and the working days for three testers.
  • Link 24 test cases to TaskPilot's 15 requirements, count the tests and passes per requirement, give every requirement a status and measure the coverage of the High-priority ones.
  • Measure how fast TaskPilot 5.3 stops failing (defects per 100 test hours), chart the reliability growth and run the exit-criteria checklist to a Go or No-go decision.

About this course

Test managers must tell a project whether a release is ready, and opinions are not enough. This course gives you the metrics to back that call. You summarise test execution by passed, failed and blocked, calculate defect density per thousand lines and spot module hotspots, and measure defect removal efficiency along with escaped defects. A severity-by-priority matrix produces a severity index and chart, while defect ageing gives mean time to fix. You estimate test effort from test cases and working days, check requirement coverage with a traceability matrix and track reliability growth before completing a go/no-go checklist. Suited to QA engineers, test leads, project managers and ISTQB learners; auto-checked labs and a certificate included.

Curriculum

Course content

8 lessons · 8 labs · 1.8 h · final exam

  1. Test Execution Status: Passed, Failed & BlockedLab12 min4 checked tasks
    Unlocked when you buy the course
  2. Defect Density per KLOC & Module HotspotsLab12 min4 checked tasks
    Unlocked when you buy the course
  3. Defect Removal Efficiency & Escaped DefectsLab13 min4 checked tasks
    Unlocked when you buy the course
  4. Severity × Priority Matrix, Severity Index & ChartLab14 min4 checked tasks
    Unlocked when you buy the course
  5. Defect Ageing & Mean Time to FixLab14 min4 checked tasks
    Unlocked when you buy the course
  6. Test Estimation: Test Cases, Effort & Working DaysLab14 min4 checked tasks
    Unlocked when you buy the course
  7. Requirement Coverage & the Traceability MatrixLab14 min4 checked tasks
    Unlocked when you buy the course
  8. Reliability Growth & the Go/No-go Release ChecklistLab15 min4 checked tasks
    Unlocked when you buy the course
  9. Final exam12 questions, 75% to pass, unlimited retries.

Certificate

Finish with a certificate you can verify

Complete every lesson and pass the final exam to receive a certificate of completion for this course, with a unique credential ID and a public verification page.

  • Names the course, your score and the date of issue
  • A verification link for your CV or LinkedIn profile
  • 12 questions, 75% to pass, unlimited retries.

A Tutorvo certificate confirms that you completed a course. It is not an official or professional qualification.

Illustration. Your certificate shows your own name, course and credential ID.

Before you buy

Questions about this course

Is this a subscription?

No. You pay $9.99 once for this course. There is no subscription and nothing renews automatically. Prices are in US dollars; taxes may be added where required.

What exactly do I get?

All lessons and labs of this course, the final exam and the certificate, including later updates to the course, for as long as Tutorvo offers it. Access is personal and tied to your account.

Can I get a refund?

Yes. If you are not satisfied, email hello@tutorvo.com within 14 days of buying and we refund the course in full via Stripe. The guarantee does not apply once a certificate for the course has been issued to you, or where there are signs of abuse.

When can I start?

Right after payment. Access starts immediately at your request; for consumers in the EU/EEA the statutory right of withdrawal therefore ends once access has begun, while our 14-day money-back guarantee applies regardless.

Do I need Excel or other software?

No. The labs run in a spreadsheet inside your browser on a laptop, tablet or phone. Function names and syntax follow Excel.

Is the certificate an official qualification?

No. It confirms that you completed all lessons of the course and passed its final exam. It is not an official, state-recognised or professional qualification. The name is taken from your profile when the certificate is issued.

Full details are in our Terms · hello@tutorvo.com

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