Final answer:
When designing a testing plan for the billing system, you need to consider three types of testing: program testing, integration testing, and system testing.
Step-by-step explanation:
When designing a testing plan for the billing system, you need to consider three types of testing: program testing, integration testing, and system testing.
- Program testing: This involves testing each component or module of the billing system to ensure that it functions correctly. For example, you would test the calculations in the billing program to make sure they are accurate.
- Integration testing: This involves testing how different components of the billing system work together. For example, you would test whether the billing program can communicate with the database and retrieve customer information.
- System testing: This involves testing the entire billing system as a whole. For example, you would test the entire billing process from start to finish, including inputting customer data, generating invoices, and processing payments.
By designing a comprehensive testing plan that covers program, integration, and system testing, you can ensure that the billing system functions properly and meets the requirements of Willowbrook School.