What is the difference between a bug, defect, and error?
Best Manual Testing Course Institute in Hyderabad
When it comes to launching a career in software testing, choosing the right training institute makes all the difference. Quality Thought stands tall as the best manual testing training course institute in Hyderabad, especially for those seeking hands-on experience, industry mentorship, and career transformation support.
Whether you are a graduate, postgraduate, a professional with an education gap, or planning a career switch from a different domain, Quality Thought offers a tailor-made learning experience designed to suit your goals. Its standout feature is a live intensive internship program guided by top industry experts, making it one of the most sought-after training destinations for aspiring testers in Hyderabad, including the bustling tech training hub of Ameerpet.
1️⃣ Error
Definition: A human mistake in writing code, design, or requirements.
When it happens: During development or requirement gathering.
Example:
A developer writes total = price + taxx instead of tax.
A requirement document says “Accepts date format DD-YY-MM” instead of “DD-MM-YY”.
📌 Think of it as: The cause of a problem.
2️⃣ Defect
Definition: A flaw in the software that causes it to behave differently from the requirements.
When it’s found: During testing by the QA team.
Example:
Requirement: Login should work with correct username/password.
Actual: Login fails even with correct credentials.
→ This mismatch is a defect.
📌 Think of it as: The problem in the product before it’s released.
3️⃣ Bug
Definition: Informal term for a defect found after development — often used interchangeably with “defect.”
When it’s found: Can be during testing or after release.
Example:
A user reports that clicking “Buy Now” crashes the app after it’s deployed.
This is logged as a bug in the tracking system (like JIRA).
📌 Think of it as: The defect that’s been noticed and reported.
Read More:
What is the Software Testing Life Cycle (STLC)?
How do you write an effective test case?
What are the responsibilities of a manual tester in a software development team?
How does manual testing differ from automation testing?
Visit Quality Thought Training institute in Hyderabad
Comments
Post a Comment