Below you have a UML class diagram for a washing machine software control application. It is an object model that represents the system.

It contains the class diagrams and the class relationships necessary to operate the washing machine. Its purpose is for general conceptual modeling of the structure of the application, and for detailed modeling translating the models into programming code.

This diagram is what a development team might have created and something that might be given to you or your implementation team to translate into code.