Building a restaurant app using Backendless

As we are progressing with the feature a day blog series, I thought it would be a good idea to come up with a fictional app which I could use in the feature posts. The idea for the app I will use as an example is a restaurant ordering system. Using the app a customer (who would need to register and login) can choose a restaurant, browse the menu and submit an order. A restaurant owner would be able to login and see the orders. Additionally, the owner would be able to run a report to calculate daily revenue. The design for the app will be evolving as we go, however to start with something I put together a class diagram which shows the core entities present in the system:
There are plenty of things we can add to the application. I can think of restaurant/menu recommendations, customer reviews, integration with payment systems, etc. This should be fun!