Explaining about Functional System Testing..?

Here,we discussing about functional system testing and these sun-testings.

• Functional System Testing:

          - Customer requirements or validating functional business requirements of the system is called "Functional System Testing ".

          - While connecting system testing,Test engineers first concentrating on functionality of the application.

          - To check functionality,Test engineers concentrating on functional system testing.

          - During this test,testers concentrating on below sub-testings...

1. Input Domain Testing
2. Output Domain Testing
3. Error Handling Testing
4. Database testing
5. Smoke Testing
6. Real Testing
7. Re Testing
8. Regression Testing.

1.Input Domain Testing:

            - During test,testers can check size and type of each input object on application.

2.Output Domain Testing:

            - during the test,testers can operate software build by giving valid data under observe output object on application.

3.Error Handling Testing:

            - during test,testers can operate software build screens by giving invalid data and observing error message.

4.Database Testing:

            - while conducting functional testing,test engineers concentrating on back-end applications is called Database Testing.

            - while conducting Database testing,testers concentrating on Data Validation,Data Integrity and Data volume testing.

1. Data Validation: testers concentrating on correctness of inserting new data is called Data Validation.
2. Data Integrity: Testers checking existing data modification due to input of new data is called Data Integrity.
3. Data Volume: checking memory of the database.Testers entering some sample data to estimate capacity of database is called Data Volume Testing.

5.Smoke Testing:

           - Testers concentrating on checking basic functionality of application.

           - it means check it's operatable or not,understandable or not,consistency or not and maintainable or not.

6.Real Testing:

           - Testers concentrating on checking functionality with positive and negative data is called real testing.

7.Re Testing:

           - Testers again & again conducting testing on previously failed functionality with positive and negative data is called Re Testing.

8.Regression testing:

           - Testers to check the side effects of the functionality,conducting a testing on defect related all functionality is called Regression Testing.