Validation | Kerala PSC | Computer Programmer | Database Administrator | System Analyst

Описание: 🎯 Software Engineering | 05 Validation | Kerala PSC Exams (Computer Programmer, DBA, System Analyst, System Manager)

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🎯 Validation in Software Engineering
In this video, we explore Validation, a critical quality assurance activity in the Software Development Life Cycle (SDLC) that ensures the final product meets user needs and expectations.

🔍 What You’ll Learn:

✅ Validation vs. Verification
Understand the distinction:

Validation – “Are we building the right product?”

Verification – “Are we building the product right?”

Validation ensures the software fulfills real-world use cases, while verification checks technical correctness.

🛠️ Validation Activities & Techniques
Explore various techniques used to confirm the system satisfies business goals:

Reviews – Stakeholder walkthroughs, peer reviews

Prototyping – Demonstrating partial functionality for feedback

Testing – Especially acceptance and system testing

Simulations & Modeling – Predicting user interaction outcomes

📄 Types of Validation
📌 1. Requirements Validation
Ensure clarity, completeness, consistency, and feasibility

Methods: Requirements review, traceability check, prototyping

📌 2. Design Validation
Confirm architectural and detailed designs align with requirements

Use case modeling, mockups, UML diagram reviews

📌 3. Testing-Based Validation
Real-world scenarios tested in:

Alpha Testing – Internal team testing

Beta Testing – End-user feedback

Acceptance Testing – Formal customer validation

🧭 Validation Process Stages
🔹 1. Planning
Define scope, roles, responsibilities, and validation criteria

Select validation methods (e.g., testing, simulation)

🔹 2. Execution
Carry out validation tasks:

Conduct reviews

Perform tests

Evaluate outputs against requirements

🔹 3. Documentation & Feedback
Record findings, issues, and resolutions

Provide feedback to development teams for corrective action

🔹 4. Sign-Off
Final confirmation from stakeholders that the product meets the defined expectations

Acts as a green signal for deployment

✅ Why It Matters for Kerala PSC Aspirants
Validation is frequently asked in interviews and exams for roles such as:

System Analyst

Software Tester

Programmer

Project Engineer

📌 Key Takeaways for Exams & Industry:

Validation ensures user satisfaction and business alignment

Often done at multiple levels: requirements, design, and implementation

Must be well-documented and traceable to original requirements