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Refactoring and Identifying bad smell code in C#

Overview

You are required to document, test and refactor an existing application. You will be given a copy of an existing C# application which is responsible for taking bookings for a theater booking system, this application is badly in need of refactoring and even a casual viewing of the source code reveals many examples of the “code smells”.

Notes about the assignment:

• Theatres have three sections: stalls, dress circle and balcony

• Each theatre section has a number of rows and each section row has the same number of seats.

• Each section has a different price per seat, Stalls $30.00, Dress circle $50.00, Balcony $90.00

• Customers must register with the system prior to placing a booking (Customers must present credit card

information when registering)

• Customers may be members or nonmembers of the “Theatre Club”

o Non-members pay full price per seat

o Members fall into three categories: bronze, silver and gold. Bronze, Silver and Gold members are

entitled to a discount of 10%, 20% and 30%, respectively off their booking.

• The system will automatically reserve a given number of seats in a requested section

o The seats are booked in the first row of a section which is found to have the number of requested seats

free adjacent to each other.

o The application searches a section from the first row working backwards towards the last row until it

finds the requested number of seats.

o There is no facility to book a particular seat.

• The system can potentially manage many theatres, each theatre has a number of theatre bookings (events) and

each theatre booking has a number of customer bookings.

• Customers can currently only make a single booking for each event.

Requirements:

Report detailing any “code smells” present in the code and how you intend to refactor them out of the code

 A refactored version of the system eliminating all identified code smells

 A class diagram illustrating the initial code and another class diagram illustrating the final refactored code

(including all relevant dependencies)

 Sequence Diagram: Calculation of Charges (represent the calls made by the refactored system when

calculating the charges for a booking)

 Sequence Diagram: Booking Seats (represent the calls made by the refactored system when booking seats

in response to a reservation)

 A sequence diagram illustrating how the final refactored system processes a new booking

 Extensive NUnit tests for the methods Calculation of Charges and Booking of Seats

Add a loyalty rewards system. That theater is running a new promotion to include more members. If a

Gold member includes his/her friend as the new member of the Theater, s/he (Gold member) will receive

a further 15% in next booking. This numbers are 10% and 5% for silver and bronze members, respectively.

 The existing application doesn’t allow to book any particular seat. Include an appropriate method in your

code base so that only the Gold members can book a particular seat. If that particular seats is not available,

the user may try for more 2 time to select another seat. However, when all the chances are gone, that

booking will be performed in usual system.

 Your report should identify any of Fowler’s “Bad Smells” in the code, and which refactorings you

performed to improve the application’s design. Refactor the code using the textbook and the refactoring example from the lectures as a guide. The resultant code should be generally free from Fowler’s “code smells”, this will become obvious when you start writing your NUnit tests and documenting the refactored system in UML.

Kemahiran: Pengaturcaraan C#, Ujian Perisian, Reka Bentuk UML, Pemprosesan Kata

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Tentang Majikan:
( 0 ulasan ) Australia

ID Projek: #16953342

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victor980410

Hello, I am experienced C# programmer. I can easily do it. Be sure I'll complete refactoring in best way.

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sarangawaze6

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GenteelSystems

Hi, I am an experienced .Net developer having more than 12 years of experience in developing all kinds of .Net applications. I have experience in legacy applications where there needs a lot of refactoring (sometime Lagi

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I am from HyderabadSoftwares. Relevant Skills and Experience Expert in. Dotnet

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