A Grocer Co. has a chain of stores that receives orders online and delivers household goods in many cities of Pakistan. A customer can visit their e-Shop to check the prices of goods, book a day/time slot suitable for delivery within a week, keep adding items in his cart any time before 12 hours of delivery slot, remove items, query for cashback in case of returned items, query for order, place the order and cancel the order. A new customer can only checkout when he creates his profile and logs in (authentication required for both new and Registered Customers). Customers’ queries are dealt with via call and/or chatbox by a Customer Care Agent. The packing officer ensures all the items are packed and weighed properly for an order. The delivery man confirms the availability and address of the customer on the delivery day. Grocer Co. offers both cash on delivery and online payment. The delivery man accepts credit card payment at the doorstep wherein Credit Payment Service is provided. On the other hand, the customer can pay online via third-party payment system to connect to his Bank.

Draw a use case diagram to represent the activities that are associated with Grocer Co. system.