TestMu AI Author

David Tzemach is a software quality and engineering leader with 19+ years of experience in software testing, quality assurance, and large-scale R&D operations. He specializes in building QA organizations from scratch, defining quality frameworks, and implementing agile and shift-left testing practices across enterprise environments. David has served as Head of QA and QA Architect, authored multiple books on agile quality and testing, and actively contributes to the testing community through his QualityBreach platform and publications.

Published Articles: 55

Articles by Author

7 Ways Monitoring Data Can Aid in Testing Improvement | TestMu AI (Formerly LambdaTest)

Software Testing

7 Ways Monitoring Data Can Aid in Testing Improvement | TestMu AI (Formerly LambdaTest)

Why do you need to monitor your data? How can it support testing improvement? TestMu AI (Formerly LambdaTest) is here to answer

January 11, 2026

A Reconsideration of Software Testing Metrics | TestMu AI (Formerly LambdaTest)

Software Testing

A Reconsideration of Software Testing Metrics | TestMu AI (Formerly LambdaTest)

In this blog, David explains how can testing efforts be measured. What is the most effective technique to assess effectiveness? Which of the many components should be quantified?

January 11, 2026

Agile Development - Are we building the right thing? | TestMu AI (Formerly LambdaTest)

Automation

Agile Development - Are we building the right thing? | TestMu AI (Formerly LambdaTest)

In my experience, one of the most critical ways that Agile teams and their testers can contribute to their customer is by making sure they focus on the business purpose of each new feature they need to deliver.

January 11, 2026

Agile in Distributed Development - A Formula for Success | TestMu AI (Formerly LambdaTest)

Automation

Agile in Distributed Development - A Formula for Success | TestMu AI (Formerly LambdaTest)

Using agile methodologies for distributed development works, but it takes more than just adopting a certain framework or methodology.

January 11, 2026

Top Agile Myths & Misconceptions | TestMu AI (Formerly LambdaTest)

Automation

Top Agile Myths & Misconceptions | TestMu AI (Formerly LambdaTest)

Getting the misconceptions out of the way early on is a good way to get started with Agile Methodology. This blog covers some myths and misconceptions that people have believed about Agile

January 11, 2026

Considering Agile Principles from a different angle | TestMu AI (Formerly LambdaTest)

Automation

Considering Agile Principles from a different angle | TestMu AI (Formerly LambdaTest)

In addition to the four values, the Agile Manifesto contains twelve principles that are used as guides for all methodologies included under the Agile movement. LEarn more with TestMu AI (Formerly LambdaTest).

January 11, 2026