Test Gap Analysis
Test Gap Analysis
Reveal Untested Changes in Source Code

Most errors in long-lived software occur in code areas that change a lot. To do things right, you have to make sure that no important changes go live untested. Test Gap analysis helps us to find untested changes.

After an introduction to Test Gap analysis (TGA), we present the experience that we have gained in recent years using TGA with customers and in our own development and answer the following questions: How can the quality of hotfix tests be assured? How can I determine during the iteration how thoroughly selected critical change requests or tickets have been tested? How does the test coverage of different test levels (unit test, integration test, acceptance test, user trampling test, etc.) compare to one another and which changes were not checked by any test level?

In addition, we present best practices and useful KPIs in continuous use and show the results of a cost-benefit analysis from many years of service at Munich Reinsurance Company.


  • Test Gap analysis (TGA) in Research and Industrial Use
  • Live Demonstration
  • Benefit Analysis of TGA at Munich Reinsurance Company


Dr. Elmar Jürgens. Co-Founder of CQSE. Deals with quality analyses of software his whole professional life.

Fabian Streitel. Leads the Pilot Team at CQSE. Has successfully set up TGA with many customers.

Jakob Rott. Uses TGA every day in customer projects. Has heard a lot of excuses why things remained tested.

Attendees' Voices

»A well structured presentation, that allowed me to comprehend the demonstrated context very well.«

»It was vivid and interesting. All speakers were great.«

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Invited Talks

Your location, our expertise

We are happy to come visit you in your office for an internal conference or a workshop. Our list of topics includes quality analyses, quality control, but also test control or introducing peer reviews. You are also welcome to pick a topic of your choice

60-90 minutes talk
About a software quality topic
In your office or remote
Our travel expenses only
Date by arrangement