SOFTWARE TESTING

Software testing is the process of verifying and validating that a software application meets its requirements and function as expected. It involves running the software under controlled conditions, ensuring that the final product is error-free.

TYPES OF TESTING:

1. Functional testing- Ensures that the application meets functional requirements.
2. Non-Functional testing - Focuses on performance, security, and usability.
3. Unit testing - Testing individual components
4. Integration testing - Ensures different modules work together properly. 5.System testing - Verifies the completes system as a whole. 6.Acceptance testing - Determines if the software is ready for release.

SOFTWARE TESTING LIFE CYCLE:

1. Requirement analysis - Understand project requirements.
2. Test planning - Define scope, objectives, and strategies.
3. Test Case development - Design test cases and scripts.
4. Test environment setup - prepare testing infrastructure.
5. Test execution - run test cases and report bugs. 6.Test closure- evaluate test results and finalize documentation.

MODELS USED FOR TESTING:

1. Waterfall Model
   Overview: The Waterfall Model is a linear and sequential approach to software development. Each phase must be completed before the next one begins, with no overlapping between the phases.

2. V Model (Validation and Verification Model)
   Overview: The V Model is an extension of the Waterfall Model, where development and testing activities are planned in parallel. Each development phase has a corresponding testing phase, forming a “V” shape.

3. Agile Model
   Overview: The Agile Model is an iterative and incremental approach to software development, focusing on flexibility, customer collaboration, and the delivery of small, workable pieces of software (increments) throughout the project.

4. Spiral Model
   Overview: The Spiral Model combines elements of both iterative and Waterfall models, focusing on risk analysis. It involves repeated cycles (or spirals) where each cycle begins with a risk assessment and moves through planning, design, and implementation.

Tools using for software testing- Selenium, Postman.

RELEVANCE OF SOFTWARE TESTING:
1.Cost savings
2.Security assurance
3.Business reputation