Software Development

• Common Phases:
  • Requirement Analysis: Gathering and documenting user requirements.
  • Design: Creating a blueprint or architecture of the software.
  • Implementation: Writing code according to design specifications.
  • Testing: Verifying and validating the software to ensure it meets requirements.
  • Deployment: Releasing the software for use by end-users.
  • Maintenance: Providing updates, bug fixes, and enhancements to the software.

Example:

• Requirement Analysis: Interviewing stakeholders to gather requirements for a new project.

• Common Testing Types:
  • Unit Testing: Testing individual components or modules of the software.
  • Integration Testing: Testing how different components work together.
  • System Testing: Testing the entire system as a whole.
  • User Acceptance Testing (UAT): Testing by end-users to ensure it meets their needs.
• Testing Techniques:
  • Black Box Testing: Testing without knowledge of the internal workings of the software.
  • White Box Testing: Testing with knowledge of the internal code and structure.
  • Regression Testing: Re-testing to ensure that previously fixed bugs have not reappeared.

Example:

• Unit Testing: Writing tests to verify the functionality of individual functions in a codebase.

• Types of Maintenance:
  • Corrective Maintenance: Fixing bugs and errors discovered after deployment.
  • Adaptive Maintenance: Modifying the software to adapt to changes in the environment or requirements.
  • Perfective Maintenance: Enhancing the software to improve performance or add new features.
  • Preventive Maintenance: Proactively identifying and fixing potential issues before they become problems.

Example:

• Corrective Maintenance: Releasing a patch to fix a critical security vulnerability discovered in a deployed application.