Functional testing focuses on verifying that the functions of a system work as expected based on customer requirements and documentation. It tests what the system does from a black box perspective. Functional testing can be done from either a requirements-based approach using specifications or a business-process-based approach using use cases, and involves creating test data, determining expected results, executing tests, comparing actual and expected outcomes, and reporting any defects found.

1. FUNCTIONAL
TESTING
http://appium-selenium.com/

2. FUNCTIONAL TESTING
• Functionality of system i.e. "what it does?“
• It is mainly black box testing
• Testing focuses on customer requirements
• Functional testing is QA assurance process
• Testing is based on documentation and features understanded by
tester
• Testing functionality can be done from two perspectives:
1. Requirements-based: users Specifications for reference, Prioritization is
done to prioritize tests
2. Business-process-based: use cases developed from business flow
http://appium-selenium.com/

3. FUNCTIONAL TESTING CONTD.
• Steps performed during functional test:
1. How Product will perform i.e. functionality
2. Create test input data
3. Determine expected data
4. Test execution
5. Compare actual and expected result
6. Raise defect if case step 5 fails
http://appium-selenium.com/

4. THANKS
http://appium-selenium.com/