Introduction: Testing is Not Random
You’re preparing for a QA interview, and the interviewer asks: “What are entry and exit criteria in software testing?”
Many beginners understand testing concepts like test cases and bugs, but struggle to explain when testing should start and when it should end. In real software projects across the USA, testing cannot begin randomly and cannot end randomly. Teams follow strict guidelines to ensure quality standards are met at every gate.
What is Entry Criteria in Software Testing?
Entry criteria in testing are the conditions that must be satisfied before testing can begin. These conditions ensure that the application is ready to be tested and that testers have everything they need.
Starting testing without entry criteria often leads to confusion, delays, and wasted effort. Common entry criteria include:
- Requirement documents approved
- Test environment ready
- Test data prepared
- Application build received
- Test cases written
Simple definition: Entry criteria are the conditions that must be met before testing begins.
What is Exit Criteria in Software Testing?
Exit criteria in testing are the conditions that must be satisfied before testing can be completed. These help determine whether the software is ready for release.
Without exit criteria, teams may release software with serious defects. Common exit criteria include:
- All test cases executed
- Critical bugs fixed
- Required test coverage achieved
- Regression testing completed
- Test summary report prepared
Simple definition: Exit criteria are the conditions that must be met before testing ends.
Entry vs Exit Criteria – Key Differences
Both are important checkpoints in the software testing entry and exit conditions process. Here is a simple comparison:
| Feature | Entry Criteria | Exit Criteria |
|---|---|---|
| Purpose | Start testing properly | End testing safely |
| Timing | Before testing begins | After testing completes |
| Focus | Testing readiness | Software quality |
Real Example: E-commerce Website
Imagine you are testing an e-commerce platform:
Entry Phase: You cannot test "Add to Cart" until the developer gives you the URL (Build received) and you have a list of items to buy (Test data prepared).
Exit Phase: You cannot stop testing until you have checked that every credit card type works (Test cases executed) and no one gets a "System Crash" during checkout (Critical bugs fixed).
Common Mistakes to Avoid
- Starting testing based on a "feeling" instead of confirmed entry criteria.
- Ending testing just because the release date has arrived (ignoring exit criteria).
- Not documenting when these criteria are met.
Frequently Asked Questions
What is exit criteria in STLC?
It is a set of defined conditions, such as "95% of test cases passed," that allows the QA team to officially sign off on testing.
Who defines these criteria?
Usually, the QA Lead, Project Manager, and key Stakeholders agree on these during the Test Planning phase.
Are these used in Agile?
Yes. In Agile, these are often built into the "Definition of Ready" (Entry) and "Definition of Done" (Exit).
Key Points to Remember
- ✓ Entry criteria = Preparation and Readiness.
- ✓ Exit criteria = Results and Quality.
- ✓ Both ensure testing is a disciplined process, not a guessing game.
Ready for your next interview question? Now that you know when to start and stop, would you like me to help you understand how to write a Test Summary Report, which is a major part of the Exit Criteria?