Object-Oriented Programming in Java: LGV System Case Study

This case study assignment requires students to develop a Java application to simulate an industrial LGV (Laser Guided Vehicle) system. The system comprises several components including a Furnace, Wrapper, LGV robot, Park, and Supervisor. The Furnace produces boxes of tiles, which are then moved to either the Wrapper or the Park based on temperature. The Wrapper wraps boxes, while the LGV robot transports boxes between these locations, guided by the Supervisor software. Students must design and implement the Java code to manage the system's operations, create data structures (classes) to represent each element, and describe the application's functionality, including any assumptions made during implementation. The project aims to assess students' understanding of object-oriented modeling, Java application development in Eclipse, and their ability to meet customer requirements through software design and implementation. The assignment is a written report with a word limit of 1000 words excluding the table of content and appendix and is assessed based on problem description, Java application functionality, system screenshots, solution explanation, and extra design features.

OOP in Java
Project development
Degree Program:
Year:
Course No.:
Course Title: Object-Oriented Programming
in Java
Type of Assessment: Case study
Weighting:
Deadline Date: 09/01/2017
1

Business case
Simulating an LGV System
Assignment: Written report of 1000 words, excluding Table of Content and
Appendix
Rationale: To assess students’ understanding of application development in
Eclipse, verifying how they can use and apply in a Project
development all the technologies explained during lessons.
Learning Outcomes:
1. Interpret a software design for a given problem, critically
analyzing the underpinning concepts of object-oriented
modeling.
2. Demonstration that the student has learned Java to a degree
that he/she is able to develop a simple desktop application,
that works based on the customer’s requirements.
3. Demonstrate that the student is able to understand the
System description and implement the corresponding OO
code in Java.
Deadline: 3 weeks after project has been introduced to the students.
Assignment Format: Line space 1.5, Times New Roman size 12.
Assessment Criteria:
Criteria Points
Problem description 10
Usage of Java to develop a functioning application 40
Screenshot of the system 10
Solution explanation 30
Extra information or design features 10
Total 100
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The Case:
Setting:
Your company “Xtreme Software Builders” have been contacted to design a Controlling
Software for an industrial LGV System that manages the operations between all the machines
present in the system.
This system is based on the following elements:
a. Furnace : mechanical machine that presents as its output a box of tiles
b. Wrapper : mechanical machine that receives in input a box of tiles and wraps it with
a plastic box (to make all the tiles more stable). Then presents in output the same box
ready to be picked up.
c. LGV : mechanical robot that moves around the system picking up box from one place
and depositing it in a different place (it is an Autonomous robot that works without
human intervention).
d. Park : empty space that will contain boxes deposited by LGV robot.
e. Supervisor : software system that manages all the machines and produces order for
the LGV robot to move a box from one place to another.
System Functioning
The system to control is based on the elements above described and works as follow:
 Furnace : it produces as output a box of tiles that needs to be moved to Wrapper
machine or to the Park depending on the temperature of this box :
If Box_Temp < 100 C  it has to be moved to the Wrapper
If Box_Temp >= 100 C  it has to be moved to the Park
This machine can be represented using the following information:
 ID (identifier) [int]
 Temperature [int]
 Box_To_PickUp [bool]
 Wrapper : it is a machine that is used to put a plastic cover around the box to make
all the tiles more stable. It presents two points:
Input : to receive a box deposited by the LGV robot
Output : to present a wrapped box ready to be picked up by LGV robot
This machine can be represented using the following information:
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 ID (identifier) [int]
 Box_In_Input [bool]
 Box_In_Output [bool]
 Park : space where LGV deposit boxes coming from Furnace or Wrapper. Its
maximum capacity is 30 Boxes
This element can be represented using the following information:
 ID (identifier) [int]
 Max_Capacity = 30
 LGV : it is a robot that picks up a box from Furnace or Wrapper and deposit it in the
Park. The information to make this robot moving are Source (pick up point) and
Destination (deposit point) provided by the Supervisor software
This machine can be represented using the following information:
 Source [int]
 Destination [int]
 At_Source [bool]
 At_destination [bool]
 Supervisor : it is the “master” software responsible to interact with all the elements
present in the system and provide the LGV with the information about the operation
to execute, that is where to pick up and where to deposit
This element can be represented using the following information:
 It receives signals from Furnace and Wrapper for box to pick-
up
 It creates a mission for LGV (provides Source and Destination)
 It provides a Mission Control :
 It simulate the LGV at the Source (pick-up)
 It simulate the LGV at Destination (deposit)
NOTE : the Supervisor software starts a MISSION for LGV only if receives a request
from Furnace or Wrapper
As Software Engineer, you have to implement the corresponding software in Java
programing language to manage the LGV System.
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Requirements:
Provide a detailed description about your application functioning and all the data
structures (Classes you need to represent all the elements for the System) used for this
project.
For this project you have a lot of freedom, so you can make any
assumption you want to make the final implementation easier for
you BUT you have to document and explain the reason why you
made this assumption.
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GENERIC ASSESSMENT CRITERIA AND MARKING STANDARDS
LEVEL 5
70%+ 60-69% 50-59% 40-49% 0-39%
Specific Learning
Outcomes
Generic Learning
Outcomes
Work of a distinguished
quality
Work of a commendable
category Sound work Broadly satisfactory
work
Work that falls short of
the threshold standards
1. 1. Critically discuss
different symptoms.
2. Discuss
interrelationships
between physical and
laboratory findings
3.Evaluate prognosis
4.Discuss the importance
proper treatment
Knowledge and
Understanding
Provides a broad and detailed
knowledge of major theories
of the discipline(s) and a
distinguished grasp of a
variety of ideas, contexts and
frameworks.
Provides a strong
detailed knowledge of
major theories of the
discipline(s) and an
assured grasp of a
variety of ideas,
contexts and
frameworks.
Provides a firm and
detailed knowledge of
major theories of the
discipline(s) and a sound
awareness of a variety
of ideas, contexts and
frameworks with no
serious inaccuracies.
Provides a broadly
satisfactory knowledge
of major theories of the
discipline(s) and a
broadly satisfactory
awareness of ideas,
contexts and
frameworks with no
serious inaccuracies.
Fails to display an
adequate knowledge of
relevant theories, ideas,
contexts and
frameworks. Work
contains an
unacceptable level of
misunderstanding of key
concepts, principles and
theories.
Conceptual-
isation and
Critical
Thinking
Demonstrates a rigorous and
broad grasp of relevant
principles, concepts and
competing perspectives and
clearly identifies and
communicates these
effectively.
Demonstrates a strong
grasp of relevant
principles, concepts, and
competing perspectives
and clearly identifies
and communicate these
effectively.
Demonstrates a firm
grasp of relevant
principles concepts, and
competing perspectives
and the ability to
identify and
communicate these.
Demonstrates an
adequate grasp of
relevant principles and
concepts.
Limited grasp of
relevant principles and
concepts.
Problem Solving,
Research and
Enquiry
Uses discipline-related
resources in a confident and
distinguished manner.
Manages information
(including referencing
resources), collects
appropriate data from an
extensive range of resources
and develops strong research
and problem solving
strategies.
Uses discipline-related
resources a
commendable manner.
Manages information
(including referencing
resources), collects
appropriate data from a
wide range of resources
and develops strong
research and problem
solving strategies.
Uses discipline-related
resources in a sound
manner. Manages
information (including
referencing resources),
collects appropriate data
from a range of
resources and develops
appropriate research and
problem solving
strategies.
Uses discipline-related
resources but with some
limitations. Manages
information (including
referencing resources),
collects appropriate data
from a limited range of
resources and develops
appropriate research and
problem solving
strategies.
Fails to use discipline-
related resources in an
adequate manner. Fails
to demonstrate an
adequate ability to
manage information
(including referencing
resources), collect
appropriate data and
undertake research tasks
or solve problems.
6

70%+ 60-69% 50-59% 40-49% 0-39%
Synthesis and
Creativity
Demonstrates a strong and
sustained ability to synthesise
and use creative solutions to
solve problems.
Provides clear evidence
of synthesis and
creativity in problem
solving.
A sound ability to
synthesise and collect
information to solve
problems
Can adequately compare
alternative methods and
techniques for obtaining
information to solve
problems.
Fails to provide an
adequate level of
synthesis.
Analysis and
evaluation
Demonstrates a strong
sustained ability to analyse
and synthesise in a
considered manner.
Develops authoritative
arguments and judgements
appropriate to the field of
study.
Clear evidence of strong
and considered
evaluation and analysis.
Demonstrates a
commendable
appreciation of the
complexity of the issues.
Provides sound
evaluation and analysis
using a variety of
standard techniques.
Demonstrates a sound
appreciation of the
complexity of the issues.
Selects appropriate
techniques of analysis
and evaluation and
provides broadly
satisfactory evaluation
of the relevance of
collected data/evidence.
Fails to provide an
adequate level of
evaluation and analysis.
Ethical
awareness and
application
Where appropriate
demonstrates a very strong
awareness of the wider social
and environmental
implications of area(s) of
study and is able to debate
these issues strongly and
competently in relation to
more general ethical
perspectives.
Where appropriate
demonstrates a
commendable awareness
of the wider social and
environmental
implications of area(s)
of study and is able to
debate these issues
strongly in relation to
more general ethical
perspectives.
Where appropriate
demonstrates a sound
awareness of the wider
social and
environmental
implications of area(s)
of study and is able to
debate these issues in
relation to more general
ethical perspectives.
Where appropriate
demonstrates adequate
awareness of the wider
social and
environmental
implications of area(s)
of study and is able to
satisfactorily debate
these issues in relation
to more general ethical
perspectives
Fails to demonstrate
adequate awareness of
the wider social and
environmental
implications of area(s)
of study and is unable to
debate these issues
adequately.
7