Here is the description for the Use Case Diagram:
Administrator
- Can manage login-Can update new products from suppliers
- Can manage users database include viewing user profile
- Can view products-Make payments to deliverers and suppliers
- Can view and reply feedbacks accordingly
Supplier
- Introduce new products to administrator
- View products of administrator
- Receive payments from administrator after supplied productsBanker
- Manage payments make by in between administrator, suppliers, users and deliverers
User
- Can login own profile
- Can view products-Have add to cart feature
- Make payments to administrator
- Can make return unexpected products to administrator through deliverer
- Can view and give comments or feedbacks
Deliverer
- Receive payments from administrator after success deliver products to users or vice versa
- Deliver products to users or administrator
Not user
- Can view products
- Can view feedbacks and comments only
-by Mohammad Rasool Sarrafi Aghdam-