The following is a description of booking a taxi through Epsilon Online.

The customer uses a mobile phone app to submit their booking request including their pickup location, their destination and the number of passengers. The Epsilon computer sends the job details out to the GPS-enabled digital taxi terminal of every driver in their taxi network and records the job with a status of Open. Drivers wanting to bid for the job do so by clicking a bid symbol on the job displayed on the screen of their digital taxi terminal. The digital taxi terminal submits the bid along with the current GPS coordinates (i.e. the current location) of the taxi, and then saves the job details. Two minutes after the job was originally relayed, the Epsilon computer calculates which of the bidding drivers is closest to the pickup point, assigns the job to them and updates the job status to Assigned. The Epsilon computer notifies the digital taxi terminal of the winning driver that their bid has beensuccessful, and the original job details are retrieved from the digital taxi terminal and displayed for the driver. The Epsilon computer notifies the customer that a taxi has been allocated and the details of the taxi number plate and estimated time to arrival are sent to them.(LO7)

Required

For the process described above:

1. Prepare the process narrative.
3. Prepare a process map.
5. Prepare a context diagram.
7. Prepare a physical DFD.
9. Prepare a logical DFD.
11. Prepare a systems flowchart.