Draw *Activity* diagram that includes 3 devices.

*User system:*

1- user can choose items with the quantity.

2- then swipe his ID card.

3- the request will be send to the admin system.

*Admin system:*

register the request with the user ID& items& quantity.

To summarize, the system described involves three components: the User System, the ID Card Reader, and the Admin System. The User System allows the user to select the items they want to purchase, while the ID Card Reader verifies their identity. The Admin System receives the request from the User System and registers it in the Request Management Interface, keeping a record of all requests made by users. This system ensures that only authorized users can make purchases, and that the admin system has a record of all the requests made by the users