2In this lab we will learn : Discuss level 0 diagram for Easy Travel Agency specifications.
3Example 2: Easy Travel Agency specifications EasyTravel is a travel agency specializing in family holidays. It holds lists of hotels and charter flights and creates organized holidays for clients. Currently the company uses a paper based system.The company its tasks by the following text:Bookings are made either through a list of agents, or by direct approach from clients.When a client/agent makes an approach, the Reservations Clerk selects appropriate flight and hotel details for the customer and makes a provisional booking. The details are entered onto a provisional booking file.
4Easy Travel Agency specifications The customer must confirm this booking within three days, by sending a deposit of 10% of costs. On receipt of this deposit, Reservations close the provisional booking and add the details to their full booking file.Four weeks before the flight is due, Accounts send an invoice to the clients for the balance. Accounts notify Customer Services when the balance is received and Customer Services then send tickets and joining instructions.Reminders are sent to customers three weeks and one week before departure. Although the company insists that payment is made at least one week before departure, it has been known that payment has been made and tickets received on the morning of the flight.At the end of each month, commission of 15% is paid to any agents responsible for holidays commencing during that month.
10Select flight and hotel Draw level 1 diagram for process 1Client details1.1Select flight and hotelClient/agentFlight and hotel infoClient/agentProvisional Booking1.2Provisional bookingBookingD1:provisional booking fileclosing1.3Confirm bookingPay 10%Booking detailD2:full booking fileFull booking
11Level 1 DFD DiagramGenerally, level 1 diagram is created for every major process on the level 0 diagramShows all the internal processes that are inside a single process on the level 0 diagramShows how information moves between these processesIf a parent process is decomposed into, for example, three child processes, these three child processes wholly and completely make up the parent process