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

Software Testing
7 Ways Monitoring Data Can Aid in Testing ImprovementWhy do you need to monitor your data? How can it support testing improvement? TestMu AI (Formerly LambdaTest) is here to answer
February 22, 2026

Software Testing
A Reconsideration of Software Testing MetricsIn 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?
June 17, 2026

Automation
Agile Development - Are we building the right thing?Agile development works when teams know why a feature is needed. Learn to question requirements, run impact mapping, and prioritize work that delivers customer value.
August 4, 2026

Automation
Agile in Distributed Development - A Formula for SuccessUsing agile methodologies for distributed development works, but it takes more than just adopting a certain framework or methodology.
July 7, 2026

Automation
Top Agile Myths & MisconceptionsCommon Agile myths explained, covering documentation, planning, deadlines, design, testing and the difference between Agile and the Scrum framework.
September 2, 2026

Automation
Agile Release Planning ExplainedAgile release planning explained: how it differs from sprint planning, the 5 planning levels, agile release management, a worked example, and success metrics.
July 17, 2026







































