Elaboration phase

The passenger who will henceforth the user will be presented with 3 choice by the reservation system, as the first step in the interaction between them. In this user have choice to choose one of these and his choice would be governed by whether he is guest or a registered user (O'sullivan, Irminger and Cheikh, 2016). Or it want to check availability of tickets or want to buy them. In this user or students who travel from XYZ airline at earlier time then it have been given a user id and a password. All its personal information will be stored in the database. Registered user can also act as guest if it only want to check availability of tickets.

Registration and creation of user profile: The system is need a user to register so that it can carry out transaction with it except for checking availability of tickets. In this some information is asked that is user name, password, address, email address and debit card number. The system then directly develop a sky miles data file and initialize it to zero in user profile.

Checking availability: When user log in to its id then system shall required to enter the following information origin city and destination city. Further system ill be generate list of flight schedule database and check if any unclearness with the name of cities. If in system there is more 2 or 3 name of same city then system will list the name with more qualification. Then user can be book ticket and in case if user enter a range of date then system will show al the flight of those dates.

Making reservation/ blocking and confirmation: After checking availability other system will ask user to that he wish to buy or block the ticket. Further if user is guest then system will ask to first register then book ticket while if user is already register and it need to log in and block its ticket.

Confirm ticket: A user who has earlier blocked a ticket then at this stated it need to confirm the ticket. To let the user confirm ticket, the system shall first log him and asked for number then it confirm the tickets.

Reschedule ticket: The system shall present the used with an option to reschedule his trip. For this purpose system will log on the user and asking his confirmation number. On the other side, it will not allow user with an option of re schedule a blocked ticket. But it can reschedules its confirm ticket.

Cancellation: The system also provide cancel ticket option. There are list of rules for cancellation of tickets which are applicable and should be followed at the time of cancellation of ticket. For cancellation it is important to give confirmation number and access.

Profile updation: In this case, profile of the user can be updated by using the system at any point of time (O'sullivan,Irminger and Cheikh). Changes can be made in any area. It is not only restricted to address, contact number or credit card number but also can be made in any field.

View ticket status: status of the ticket of the user can be easily checked by using the system. System allows the user to retrieve all the data related to the reservation and details of the trip. It allows accesing and viewing the ticket by the user which includes cancellation of ticket, date and timings of the journey etc. System enables him to check the status of the ticket in a standard format.

Non-functional requirement of system is as follows

Performance: Time of responding the airline reservation system is less than 2 second. Waiting time is called as response time in which system access, queries and retrieves the information from the database.

Reliability which shall be available for 24 hours and 2 days. Therefore, Airline reservation system provide availability of flight

Integrity: in integrity the system administer has the right to change system parameter that is pricing and it should be secure and protect the database.

Future requirement: it support the waiting list functionality. Further airline reservation system made more flexible in ticket reservation handling. Along with this it makes accept the waiting list for reservation. Airline Reservation system helps in providing the users with the support of waiting list functionality. This system should be capable of handling the area of waiting list and provides the users with the best support they can give. It should be made more forward according to the requirements of the users like sending some of the requests for shifting those passengers who are in the list of waiting to the new flight.

Telecommunication programme of ARS should be more advanced by allowing the customers to cancel the ticket at the last time, instant booking of the ticket etc.
It should help the users to send their requests regarding scheduling and rescheduling of flights, operational problems, and enabling them with another options.
They shall be able to cope up with the services provided at various airports whether domestic or international in a single city.

Explaining the role of use cases for the creating of a domain model of the problem domain

Use case diagram is mainly known as the behaviour diagram which is basically used to describe the set of action of system which can perform in collaboration with one or more external users. There are some of the use of case diagram as a specialization of a class diagram.

Use of the case is not only inherently object oriented

• an external user view of the systems
• Betwixt user and the system, it intends to modelling the dialogue

Reviewing the functional and non-functional requirement for the major system area of airline system

By reviewing the functional and non-functional requirement for the major system are of airline is a

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