How to model order system in UML?

Question

UML

Hello. There was such task: to model system of orders on UML:

But a problem that I at all do not understand how it should look. I know how, for example, to do this task: "Employees work in departments. Each employee can hold one or more positions. Each position has its own salary rate," but I didn’t even find examples for my task. I ask for help, can anyone give a tip on how to draw it up, or give a link to the literature? I will be very grateful.

Answer 1

M2M en.wikipedia.org/wiki/Many-to-many_ (data_model) foreignKey =
one to many

Список_статусов:
    название = (Доставлено, Готовится, ...)

Заказчик:
    имя = текст
    ....

Продукт:
    название = текст
    ....

Заказ:
    заказчик = м2м(Заказчик) // много заказчиков у которых много заказов
    статус = foreignKey(Список_статусов) // один статус у многих заказов
    продукт = foreignKey(Продукт) // один продукт во многих заказах
    количество = Integer

In a good way, it is necessary to give the opportunity to one customer to group goods into an order, but nothing is said about this in the task