The class template can provide point definitions (class data items) for any data that will be collected at the object level.
In order to insure that the class includes the requirements for all the objects that are created, it is important to determine the specific data that will be collected. Performing this task before you concern yourself with configuration makes it more likely that you will include all the possibilities in your class configuration.
The type of data depends entirely on the purpose of the application.
The data to be collected from each tank is.
Step 1. Plan a class.