Software Testing Terminology: a concise guide to 100+ QA terms
A practical summary of TestMu AI’s compiled glossary that defines 100+ software testing and quality assurance terms, grouped for quick lookup and applied use.

A practical summary of TestMu AI’s compiled glossary that defines 100+ software testing and quality assurance terms, grouped for quick lookup and applied use.

The glossary covers foundational QA concepts through modern topics such as agentic testing and LLM evaluation, making it useful for both new and experienced testers.
Entries are grouped alphabetically and include common test types, test processes, tools, metrics, and emerging terms like Agent Assurance and generative AI testing.
Use the list as a reference when writing test plans, defining team roles, or aligning terminology across engineering, QA, and product teams.
Join the waitlist Turn QA Terms Into Real Test Runs Practice these QA concepts on 3,000+ browser and OS combos with 100 free automation minutes. If you're a novice in software testing, you've probably heard many unfamiliar acronyms and jargon. In order to expand your professional vocabulary, learning different testing terminologies is crucial.
Roles and metrics such as severity, priority, and test coverage. A/B Testing A/B testing or split testing creates at least one variant to test against a current webpage to ascertain which one performs better regarding agreed metrics such as revenue per visitor (for e-commerce websites) or conversion rate. Acceptance Test Driven Development Acceptance Test Driven Development (ATDD) is a software development methodology that helps you to reduce the risk of defects and ensure that your application meets quality standards by incorporating testing as an integral part of the development process.
Software Testing Terminology: 100+ QA Terms Defined New: Test levels such as unit, integration, and system testing. Test types such as functional, performance, and security testing.

A glossary of 100+ AI terms for engineering and QA teams: LLMs, agents, RAG, evals, prompting and generative AI, each defined in plain language.

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Abhishek Mishra is a Technical Product Manager at TestMu AI (formerly LambdaTest), where he owns Test Manager, the test management product. He has over 8 years of experience in product management and market analysis, spanning AI-native software testing, product strategy, and analytics. On TestMu AI, he authored guides

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