Component Integration and Test

c) To assemble and test components as an integrated unit.

d) Increased complexity of the system.

c) Conducting functional, performance, and compatibility tests.

d) Fashion design.

b) To evaluate the performance under extreme conditions.

**1. Key steps of CIT process:**

• **Planning:** Define the scope of integration (payment module, authentication system, data storage), identify test objectives (functional, performance, compatibility, security), and develop detailed test procedures for each component and the integrated system.
• **Assembly:** Combine the individual components according to the design specifications, ensuring proper communication and data flow between them.
• **Testing:** Conduct a series of tests for each component:
  • **Payment module:** Functional tests (processing payments, handling different payment methods), performance tests (transaction speed, load handling), security tests (encryption, fraud prevention).
  • **Authentication system:** Functional tests (user login, password recovery), performance tests (authentication speed, concurrent user handling), security tests (password strength, account lockout mechanisms).
  • **Data storage:** Functional tests (data storage, retrieval, manipulation), performance tests (read/write speed, data integrity), security tests (data encryption, access control).
  After individual component tests, conduct integrated system tests:
  • **Functional tests:** Ensure all components work together seamlessly to process payments, authenticate users, and store data correctly.
  • **Performance tests:** Evaluate the overall system performance under different load scenarios and with a large number of users.
  • **Compatibility tests:** Verify the system's compatibility with different browsers, operating systems, and devices.
  • **Stress tests:** Push the system to its limits to assess its resilience and identify potential bottlenecks.
  • **Security tests:** Penetration testing to identify vulnerabilities and assess the system's security posture.
• **Analysis:** Analyze test results, identify issues, and document findings. Prioritize issues based on severity and impact on system functionality, performance, and security.
• **Rework/Iteration:** Address identified issues through design modifications, code changes, or component adjustments. Retest the affected components and the integrated system to ensure issues are resolved. Repeat this cycle until the system meets all performance and reliability requirements.

**2. Types of tests:**

• **Functional testing:** Verifies that the system performs its intended functions as designed.
• **Performance testing:** Measures the system's efficiency, speed, and accuracy under different load conditions.
• **Compatibility testing:** Ensures the system works seamlessly with different browsers, operating systems, and devices.
• **Stress testing:** Evaluates the system's performance under extreme conditions.
• **Security testing:** Identifies and mitigates vulnerabilities that could compromise system security.

**3. Analysis and addressing issues:**

• **Document all test results:** Record test cases, execution steps, and outcomes.
• **Identify and prioritize issues:** Categorize issues based on severity (critical, major, minor) and impact (functionality, performance, security).
• **Analyze root causes:** Determine the underlying reasons for each issue to effectively address them.
• **Develop and implement solutions:** Make necessary code changes, component adjustments, or design modifications to resolve issues.
• **Retest:** Verify that the implemented solutions address the identified issues and do not introduce new problems.