---
title: "Test levels \u0026 lifecycle"
type: "topics"
url: "https://istqb-glossary.page/topics/test-levels/"
---

# Test levels & lifecycle

---
title: "Test levels & lifecycle"
description: "The test levels and the software development lifecycle: component, integration, system and acceptance testing, regression, maintenance and change-related testing."
cluster: test-levels
translationKey: topic-test-levels
---