draw a system sequence diagram

1. Introduction The Online Store System deals with four types of external actors; Customer, Manager, Admin, and Deliverer. The customer register into the system as a new customer in order to place orders. On the other hand, the system displays available products to the customer and confirms his/her order. The admin is responsible for creating, editing, and deleting users from the system, while the system displays users to admin. The manager creates, edits, and deletes different food categories while the system displays the categories to manager. And finally, the system requests delivery from meals deliverer and the deliverer confirms delivery. 2. Problem Definition Online shopping is a process that has been well known, however there is a lot of problems faces the customers like order being cancel because of the system of the store didn't give the customer that the product is out of stock and other common problem the order is being late and not giving a special date for receiving the order. The quality of the product which we see online and the product we receive is often different. This creates a bad impression for the consumer. 3. Project Scope The scope of online store is making a easy system for the customer and easy connection between the customer and deliverer to not face the common problem - the online store must be trusted by the customer to keep ordering 4. Proposed Software The proposed sowtware (oop) means to help customer to order online to save time,effort,money.and to deliver their orders to them in a conveinent time