Student ID number: ____________________ Pages: 6
Questions: 10
UNIVERSITY OF TASMANIA
EXAMINATIONS FOR DEGREES AND DIPLOMAS
October-November 2015
KIT506 Software Application Design and Implementation
Examiner: Dr James Montgomery
Time Allowed: THREE (3) hours
Reading Time: FIFTEEN (15) minutes
Instructions:
Attempt ALL TEN (10) questions. Each question is worth EIGHTEEN (18) marks.
The total for the examination is ONE HUNDRED AND EIGHTY (180) marks.
Carefully read a question before you start to answer it. It is recommended you spend
approximately 18 minutes on each question.
Answer each question on a new page and correctly label each answer with its
question number.
Return this exam paper with your answer booklet.
KIT506 Software Application Design and Implementation 2
continued…
Question 1
Consider the following excerpt from an RTM for a software development
environment similar to Visual Studio. Write the action–software reaction table that
would be part of the structured scenario for the use case described.
Entry Para Requirement Type Use Case
99 4.2.1 The user shall be able to recompile the entire
project.
SW UC99 User
builds Project
100 4.2.1 This action will be accessed via a “Rebuild”
menu item under the “Build” menu.
SWC
99
101 4.2.2 The system will only recompile source files that
have changed since last being compiled.
SWC
99
102 4.2.2 The user will be prompted to save any unsaved
changes prior to compilation; if they choose not
to then rebuilding will stop.
SWC
99
103 4.2.2 The system will compile source files one at a
time, and will stop the rebuild process if any
errors are encountered and report the error.
SWC
99
104 4.2.2 The compiled sources will then be combined
into a single executable file, in the Debug folder.
SWC
99
[18 marks]
Question 2
During analysis work that you did for your client, the “Amateur Theatre Group”,
you have collected the following information:
The theatre group presents a number of shows each year. Each show has a
title, start date and end date.
The theatre group employs a variety of staff (who work on the shows)
Each staff member may or may not work on a particular show
There are different kinds of staff in the company:
o Actors, who can speak and lookSerious
o Dancers, who can jump and glide
o Singers, who are also actors, but who can also sing and complain
o BackstageStaff, whose responsibility can be represented by a string
Actors (including singers) have an integer starRating, which indicates how
valuable they are to the show and its likely sales.
No dancer or backstage staff member is ever an actor, and no backstage staff
member is ever a dancer.
Each show has a director, who is an actor.
Draw a UML class diagram that best describes the above information. Include
attributes and methods that are mentioned in these classes. (Treat actions, like speak
or glide, as methods.) Include multiplicities where relevant.
[18 marks]
KIT506 Software Application Design and Implementation 3
continued…
Question 3
Draw a UML sequence diagram to show what happens when the following four
classes are executed as a C# application.
class Program {
static void Main(string[] args) {
A a = new A();
B b = new B();
a.Run(b);
}
}
class A {
public void Run(B b) {
C c1 = new C();
b.Use(c1);
b.Make();
}
}
class B {
public void Use(C c) {
c.Cede();
}
public void Make() {
C d = new C();
Use(d);
}
}
class C {
public void Cede() {
// code to be written
}
}
[18 marks]
Question 4
a What is a software design pattern? What information should accompany a
software design pattern?
[6 marks]
b Design patterns often lead to solutions with a greater number of classes. What
advantages do they provide to compensate for this added complexity?
[6 marks]
c Give an example of a software design pattern (other than Model-ViewController)
and describe a situation in which it could be used. Draw a simple
UML diagram to illustrate it.
[6 marks]
KIT506 Software Application Design and Implementation 4
continued…
Question 5
Consider the following class diagram. Write C# class declarations that represent this
structure. Do not include the using statements or the namespace declaration in your
answer. You may assume that all required namespaces are available. Each attribute
must be a public, auto-generated property. Any methods you write should be stubs,
with an appropriate header but no code within their body { }.
[18 marks]
Question 6
In parts (a)–(c) below suppose there exists a class called Product that represents the
products manufactured by some company. It has three public properties: Model (a
string), Price (a double, being the price in dollars) and Weight (a double, being its
weight in grams).
a Assuming the following declaration of a collection of Products
List<Product> products = new List<Product>();
that has been filled with Product objects, write a LINQ expression that selects
those products that weigh less than 500 grams.
[6 marks]
b Further suppose that there exists a MySQL database with a table called
product that has a string-valued column model, a Boolean-valued column
on_sale, and two double-valued columns price and weight. Write a
suitable SQL query to retrieve the information necessary to create Product
objects from the information in the product table.
[6 marks]
c Now assume that a MySqlDataReader called rdr has been created using the
query you defined in part (b), and that it has been executed and its Read()
method called to load the first result. Write a single C# statement to instantiate
a Product object using the data retrieved and assign it to a variable called p.
[6 marks]
enumeration?
State
Ready
Running
Broken
Machine
+Status: State
+Start(): void
+Stop(): void
Crusher
+Pressure: double
Welder
+Temperature: double
Part
+ID: string
+Installed: DateTime
0..* 0..1 has
KIT506 Software Application Design and Implementation 5
continued…
Question 7
a Describe some of the key features of the .NET Framework. What benefits does
it offer for software developers? (Write three to five sentences in total.)
[6 marks]
b With regard to WPF and XAML, what is data binding and what are some of
the benefits it provides?
[6 marks]
c Describe the benefits of defining data sources as resources in XAML rather
than creating them in the C# code-behind.
[6 marks]
Question 8
Parts (a) and (b) of this question relate to different GUI designs.
a Assume a WPF Window uses a Grid layout with two columns and two rows.
Write a fragment of XAML to create a Label with the name “lblName” that
occupies all of the lower-right cell in the grid. Have the Label display the text
“Testing”. Include only those properties that are necessary to achieve this
behaviour. Do not write the XAML for the containing Grid.
[9 marks]
b Consider the following excerpt from the XAML for an application’s main
Window. Draw a low-fidelity sketch of the GUI it defines. It does not have to
be to scale.
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="200*"/>
<ColumnDefinition Width="200*"/>
</Grid.ColumnDefinitions>
<ListBox Grid.Column="0">
<ListBoxItem>Item A</ListBoxItem>
<ListBoxItem>Item B</ListBoxItem>
<ListBoxItem>Item C</ListBoxItem>
</ListBox>
<StackPanel Grid.Column="1" Orientation="Horizontal">
<TextBlock Text="Hello " />
<TextBlock Text="World" />
</StackPanel>
</Grid>
[9 marks]
KIT506 Software Application Design and Implementation 6
*
Question 9
a Although different software development approaches vary in their details,
they all identify distinct activities such as requirements analysis, design,
implementation and testing. Why can we not write complete software
products immediately after discussing a client’s needs?
[6 marks]
b What are the aims of software testing?
[6 marks]
c Describe two kinds of software testing activities, including what development
stage they are used in and what kinds of faults they aim to uncover. Indicate if
those activities use black box or white box approaches, or a mixture of both.
[6 marks]
Question 10
Consider the following use case-based test for the application developed in your
assignments, and answer the questions that appear below the table.
Description When the user selects a name in the list the researcher details view
will be displayed.
Type and
Use Case
SW UC16_User_selects_Researcher
Criteria When the user selects a researcher in the researcher list the
application will show various details about them in the detail view.
Staff and students will show different details.
Method Black box test:
1. Open the RAP application
2. Select a researcher in the researcher list
3. Check the displayed details
Outcome Fail – no details shown
Method Black box test:
1. Select a staff member from the researcher list
2. Performance measure should be shown and correct
Outcome Fail – no details shown
a Is this test case sufficiently detailed to allow a tester to verify that the system is
behaving as expected? If not, where could more detail be added?
[6 marks]
b Based on your knowledge of the RAP system, are there enough test methods
in this test case?
[6 marks]http://www.6daixie.com/contents/15/1920.html
c Was either test based on knowledge of how the system was implemented in
code? Explain how you can tell from the details in the table.
[6 marks]
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