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🧪 QA (Quality Assurance) & QC (Quality Control) Terms VI

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📌 What is “Ad-hoc” in Quality Assurance?

Ad-hoc refers to tasks that are performed spontaneously or temporarily for a specific purpose.

🔑 Meaning in QA:

• Unplanned, informal testing methods

• Used to quickly examine specific features or issues when bugs occur

• Focused on immediate problem-solving without predefined test cases

📌 Usage Examples:

💡 Summary:
Ad-hoc testing is a flexible and immediate approach used to resolve unexpected issues without pre-planning. 🔍

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✅ What is Regression Testing?

Regression testing ensures that existing features still work correctly after code changes such as updates, bug fixes, or enhancements.

🔑 Key Characteristics:

• Validates that new features or fixes don’t break existing functionality

• Commonly automated

• Includes testing areas beyond the modified code

• Aims to recheck for side effects or new bugs

📌 Examples:

• After modifying the login feature, checking whether sign-up and logout still work

• After improving the payment page, verifying that the cart and order history pages remain functional

🚨 Purpose:
To prevent unintended side effects from code changes.

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📌 When to Use Each?

📌 Summary:

• Ad-hoc Testing = Spontaneous testing to freely explore and find bugs

• Regression Testing = Repeated testing to ensure new changes haven’t broken existing features

✅ Conclusion:
Ad-hoc testing is fast and flexible but lacks structure, while regression testing ensures stability but may require more time. It’s important to choose wisely based on context! 🚀

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✅ What is Slot-Filling?

Slot-Filling is a technique used in Natural Language Processing (NLP) to automatically extract necessary information (“slots”) from user queries or commands.

🔑 How Slot-Filling Works:

1. Intent Recognition

   • Understand the user’s goal

   • Example: “I want to book a flight” → [Booking Intent]

2. Slot Identification

   • Identify required information

   • Example:

     • Departure: Seoul

     • Destination: New York

     • Date: March 10

3. Slot Filling

   • Extract values from the user’s sentence and populate the slots

📌 Example:

User: “Book a flight from Seoul to New York on March 10.”

🚀 Where Slot-Filling Is Used:

• Chatbots

• Voice assistants (e.g., Alexa, Siri)

• Booking/reservation systems

• Customer support automation

🔑 Key Points:

• First, identify the intent

• Then, extract required slots

• Ask follow-up questions if information is missing

💡 Summary:
Slot-Filling helps conversational AI accurately understand and process user needs by extracting key information automatically.

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✅ What is a Handover?

Handover is the process of transferring responsibilities and context from one person to another to maintain business continuity.

🧩 Key Components:

• Scope – What’s been done and what’s left

• Status – Completed vs in-progress vs not started

• References – Documents, account credentials, tool access

• Issues/Risks – Expected problems or special instructions

💡 Example Scenarios:

• Transferring QA tasks to another tester

• A designer handing over a project to another designer

• A PM resigning and passing data to a successor

🗂 Related Terms:

• Work Handover Document – Documentation used in transitions

• Handover Checklist – Checklist to ensure all items are covered

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✅ What is a Hotfix?

A Hotfix is an urgent patch deployed to quickly fix a critical issue, often outside the regular release schedule. It’s commonly used to resolve serious bugs or security vulnerabilities affecting users.

🔧 When Do You Need a Hotfix?

• App crashes or failure to launch

• Potential data loss

• Security vulnerabilities

• Core feature failures (e.g., login, payment, form submissions)

🔁 Hotfix vs Regular Release:

💡 Example:

“After deployment, the editor isn’t saving content. We need a hotfix ASAP to patch it on the production server.”

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✅ What is an RC Version?

RC (Release Candidate) is the last testing version released before the final version of a product.

🧪 Release Flow:
Development → Alpha → Beta → RC → Stable

🔍 RC Version Highlights:

• No new features added

• Stability and performance testing

• Final QA or client validation before launch

• If no issues, becomes the official release

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✅ What Does “Release” Mean?

Release means officially delivering software or a product to users.

🧩 Examples:

📌 Common Terms Related to Release:

🎯 QA’s Role in a Release:
After QA is completed and PO or client approval is given → The feature is deployed live = Release stage

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✅ What is Migration?

Migration refers to moving existing data or systems to a new environment or system.

🧩 Simplified Definition:
It’s like “moving house” — but for data, systems, or platforms.

It’s not just copying data. You need to consider structure, compatibility, and validation.

📌 Examples of Migration:

🔍 In QA, Migration Testing Ensures:

• No data is lost during transfer

• Transferred data works correctly with the new system

• Performance and security remain stable

 

📌 More QA/QC Info…

https://eunice0121.com/category/qa_qc/