Control Flow Analysis
Control flow analysis examines the possible execution paths through software to identify test conditions, unreachable code, or structural weaknesses.
“A type of static analysis based on a representation of unique paths for executing a component or system.”
(Definition reproduced from the ISTQB Glossary. Copyright belongs to ISTQB.)
View the complete ISTQB GlossaryWhat is Control Flow Analysis?
This white-box analysis technique helps testers and developers understand program behavior by studying decisions, branches, and loops.
Path identification: Reveals possible execution routes through the code.
Coverage support: Helps identify areas requiring additional structural tests.
Code quality: Can reveal unreachable or redundant code.
Real World Example
A regulated product team is preparing a release where Control flow analysis appears in reviews, test design conversations, or defect triage rather than as an isolated glossary word.
The risk is that the team treats Control flow analysis as interchangeable with nearby ISTQB terms. That makes test scope blurry and can lead to weak evidence for the release decision.
The tester anchors the discussion in the official definition, asks where the concept appears in the product, and designs examples that show the difference between Control flow analysis and similar ideas.
The page becomes useful in practice because Control flow analysis is connected to a specific testing decision, not memorized as a detached definition.
Practice Questions
Question 1
Which statement BEST describes Control flow analysis in the context of ISTQB terminology?
Question 2
A tester needs to explain Control flow analysis to a non‑technical stakeholder. Which approach is MOST appropriate?
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