BTEC Higher Nationals
in Computing 2003
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Assessment
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36-41: OOPs Game Design
Dr Derek Peacock
Unit
Assessor(s)
Issued
Due Date
Cut off Date
36: Object Oriented Programming
Dr Derek Peacock
5th October 2004
16th November 2004
30th November 2004
Student:
Handed in
Signed
HNC Computer Studies
Unit 36: OOPs
Assessment Brief 36-41
OOPs Game Design
1 Scenario
Kumari Software is a small software house that specialise in producing games that
will run under Windows 98/ME/2000/XP, and which they market by releasing them
as 30 day trial versions on the cover CDs of leading Computer Magazines. Having
investigated the design and construction of a board game, it has been decided that
other games could be developed using a similar Game Engine
The Managing Director has asked your programming team to produce an OO Design
suitable for a version of Othello and implement the basic game engine. You are
asked to produce a report that explains the way in which the game engine embodies
the use of the main object-oriented principles.
In order to maximise the re-use of libraries you have been asked to make a the design
and implementation as general as possible so that further board games that are based
on a board composed of cells on which single tokens are placed and moved around.
Your report should include an evaluation of the re-usability of the game classes.
2 Tasks
Task
Learning
Outcomes
Task Description
Create a Use Case Diagram in a UML tool that covers at least half of
the features of the proposed game.
1.
36.1.1
2.
36.1.3, 36.1.4
From the Use Case Diagram develop a Class Diagram in a UML
tool containing base classes. suitable for most board games
3.
36.1.3-36.1.5,
36.4.2
From these general base classes extend the model by adding suitable
classes for one specific board game Othello
4.
36.1.2, 36.3.1
Identify methods and attributes for each of the classes, and check that
they are appropriate using Sequence or Collaboration Diagrams
5.
36.2.2, 36.3.3
Check the given User Requirements and ensure that the class
diagram contains most of the attributes and methods which are
necessary to meet the user requirements.
6.
36.1.5
Suggest a suitable design pattern, and incorporate it into the game
model..
7.
36.3.3
Document each class, method and attribute, and print out the
documentation in a suitable form.
8.
36.1.1
Check that the proposed design has high coherence and low
coupling
9.
36.3.2
List at least two different ways people who might potentially buy the
game could be involved in decisions about its design.
10.
M & D only
Stephenson College
Write an individual critical evaluation of your design suggesting
alternatives or improvements in no more than 2000 words
Derek Peacock 2nd October 2004
Page 1 of 10
HNC Computer Studies
Unit 36: OOPs
Assessment Brief 36-41
3 Assessment Form
This assessment will be completed in conjunction with assessments in Unit 30:Java
Programming, and Unit 41 Data Structures and Algorithms. Together the
assessments in Unit 30 and Unit 41 will illustrate most of the stages of the
development of a computer game following the iterative software development life
cycle. Thus this assessment will produce an Object-Oriented Analysis and Design
for the Game. And subsequent assessments will illustrate on a small scale how an
OOD design can be translated into code, using appropriate data structures and
algorithms.
You are encouraged to discus the design with fellow students, but it is expected that
each student will submit an individual design and evaluation that reflects their own
thinking. Tutors cannot be approached for assistance on the evaluation other than
help with the theoretical concepts involved.
As a guide it is expected that students seeking a Distinction grade would not require
more than the minimal of tutor support during the completion of this assessment. It
is also expected that students seeking Merit or Distinction grades will need to spend
as much time working on this assessment out of class as they do in class.
Main Indicative Reading: “Teach Yourself UML in 24 Hours” Joseph Schmuller
SAMS
Supplementary Reading “Design Patterns” by Gamma et al (1995) Addison
Wesley, and “Software Engineering and Computer Games” by Rudy Rucker (2003).
4 Assessment Overview
Grade
Distinction
Merit
Pass
Stephenson College
Assessment Criteria
 To obtain a distinction grade the student must produce a model that
shows independence and creativity and they must critically evaluate
their design, and come to valid overall conclusions on its practicality
and reusability. They should arrive at these conclusions independently.
They should be able to suggest alternatives or improvements to the
model, and be able to discus appropriate ways of evaluating the quality
of UML designs.
 To obtain a Merit grade the student must produce a model that well
documented and is largely complete showing high cohesion, low
coupling
 To obtain a Pass grade a student must produce an Object-Oriented
design that is documented and correctly models most of the given
features of the game. The design must demonstrate the use of the main
concepts of an object-oriented approach including encapsulation,
inheritance, polymorphism and appropriate message passing between
classes. The student must also suggest ways of involving potential
users of the game in design decisions, and their model must incorporate
appropriate design patterns.
Derek Peacock 2nd October 2004
Page 2 of 10
HNC Computer Studies
Unit 36: OOPs
Assessment Brief 36-41
5 Unit 36: Outcomes
Learning Outcomes
11. Understand objectoriented concepts
Assessment Criteria
 apply principles of good practice evolved as
culmination of various trends in software engineering
 determine whether a system is fully object-oriented
 identify opportunities for applying inheritance
 identify opportunities for utilising polymorphism
 select an appropriate pattern
12. assimilate and use
basic objectoriented
programming
concepts
13. Use an objectoriented
programming
design method
 identify the various elements in an object based
program
 develop programs using object-oriented
programming concepts
 construct and use basic objects
 clearly identify classes and associated methods from
a program specification
 identify ways of involving the client in decisions
 justify selection of suitable classes, and allocation of
features to classes
 create an object-based design using a specified
design method
14.
Reuse system
components using
object-oriented
programming
principles
Stephenson College
 incorporate elements from a class library into simple
programs
 modify a class to develop new classes based on a
(possibly supplied) base class, to a specification
Derek Peacock 2nd October 2004
Page 3 of 10
HNC Computer Studies
Unit 36: OOPs
Assessment Brief 36-41
6 Deliverables (to meet Learning Outcomes)
WBS
No
Deliverable
Feedback on Deliverable
Accepted
(Date)
36.1
Othello
Use Case Diagram(s)

36.2
Board Games
Class Diagram(s)

36.3
Othello
Sequence Diagram(s)

36.4
A Mode incorporating
a Design Pattern

36.5
Class Documentation
36.6
Ways of Involving
Potential Players
36.6
Individual
Model Evaluation
(M & D only)
Stephenson College



Derek Peacock 2ndh October 2004
Page 4 of 10
HNC Computer Studies
Unit 36: OOPs
Assessment Brief 36-41
7 Evidence for Merit Grade
Merit(1) – Identify and apply strategies to find
appropriate solutions
Evidence found
Achieved
Evidence found
Achieved
 Effective judgements have been made

Complex problems with more than one variable have
been explored

An effective approach to study and research has been
applied
Merit(2) – Select/design and apply appropriate
methods & techniques

Relevant theories and techniques have been applied

A range of methods and techniques have been applied

A range of sources of information has been used

The selection of methods and techniques/sources has
been justified

The design of methods/techniques has been justified

Complex information/data has been synthesised and
justified

Appropriate learning/techniques have been applied
Stephenson College
Derek Peacock 2ndh October 2004
Page 5 of 10
HNC Computer Studies
Merit(3) Present and communicate
appropriate findings
Unit 36: OOPs
Assessment Brief 36-41
Achieved
Evidence Found
 Appropriate structure and approach used
 Coherent logical development of principles/concepts for
the intended audience
 A range of methods of presentation have been used and
technical language has been accurately used
 Communication has taken place in familiar and
unfamiliar contexts
 The communication is appropriate for familiar and
unfamiliar audiences and appropriate media have been
used
INDICATIVE OF MERIT
(No, partly, Yes)
Stephenson College
Derek Peacock 2ndh October 2004
Page 6 of 10
HNC Computer Studies
Unit 36: OOPs
Assessment Brief 36-41
8 Evidence for Distinction Grade
Distinction(1) – Critical
Evaluation

Conclusions have been arrived at
through synthesis and have been
justified

The validity of the results has been
evaluated

self criticism of approach has taken
place

Realistic improvements have been
proposed
Distinction(2) – Managing &
Organising

Autonomy and independence
demonstrated

Substantial activities, projects or
investigations have been planned,
managed and organised

The unforeseen has been
accommodated

The importance of interdependence
has been recognised
Stephenson College
Evidence Found
Achieved
Evidence Found
Achieved
Derek Peacock 2ndh October 2004
Page 7 of 10
HNC Computer Studies
Distinction(3) Convergent/
lateral/creative thinking

Ideas have been generated and
decisions taken

Self evaluation has taken place

Problems have been solved

innovation and creative thought
have been applied

receptiveness to new ideas is
evident

effective thinking has taken place
in unfamiliar contexts
Unit 36: OOPs
Assessment Brief 36-41
Achieved
Evidence Found
INDICATIVE OF DISTINCTION
(No, partly, Yes)
Stephenson College
Derek Peacock 2ndh October 2004
Page 8 of 10
HNC Computer Studies
Unit 36: OOPs
Student Name
Assessment Brief 36-41
Grading criteria obtainable
Main Unit
36 OOPs
Assess Ref
36:41-OOPs Game
Design
Hand in Date
16th November 2004
M1
Date Received

M2

M3

D1

D2
D3


Grading criteria met
M1
M2
M3
D1
D2
D3
Extension Date
Tutor Comments
Learner Comments
INDICATIVE
GRADE
Tutor Signature
____________________
Date: ____________
Learner Signature _____________________
Date ____________
Verifier Signature _____________________
Date ____________
Stephenson College
Derek Peacock 2ndhOctober 2004
LAMS
Page 9 of 10