Higher Nationals in Computing
Unit 20: Advanced Programming
Assignment 2
Learner’s name:
ID:
Class:
Subject code: 1651
Assessor name: PHAN MINH TAM
Assignment due: Assignment submitted:
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Higher Nationals in Computing
Unit 20: Advanced Programming
Assignment 2
Learner’s name:
ID:
Class:
Subject code: 1651
Assessor name: PHAN MINH TAM
Assignment due: Assignment submitted:
ASSIGNMENT 2 FRONT SHEET
Qualification BTEC Level 5 HND Diploma in Computing
Unit number and title Unit 20: Advanced Programming
Submission date Date Received 1st submission
Re-submission Date Date Received 2nd submission
Student Name Student ID
Class Assessor name Phan Minh Tam
Student declaration
I certify that the assignment submission is entirely my own work and I fully understand the consequences of plagiarism. I understand that
making a false declaration is a form of malpractice.
Student’s signature
Grading grid
P 3 P 4 M 3 M 4 D3 D 4
ASSIGNMENT 2 BRIEF
Qualification BTEC Level 5 HND Diploma in Computing
Unit number and title Unit 2 : Advanced Programming
Assignment title Application development with class diagram and design patterns
Academic Year
Unit Tutor
Issue date Submission date
Submission Format:
Format: The submission is in the form of an individual written report. This should be written in a concise,
formal business style using single spacing and font size 12. You are required to make use of
headings, paragraphs and subsections as appropriate, and all work must be supported with
research and referenced using the Harvard referencing system. Please also provide a
bibliography using the Harvard referencing system.
Submission Students are compulsory to submit the assignment in due date and in a way requested by the
Tutors. The form of submission will be a soft copy in PDF posted on corresponding course of
http://cms.greenwich.edu.vn/ together with zipped project files.
Note: The Assignment must be your own work, and not copied by or from another student or from
books etc. If you use ideas, quotes or data (such as diagrams) from books, journals or other sources, you
must reference your sources, using the Harvard style. Make sure that you know how to reference properly,
and that understand the guidelines on plagiarism. If you do not, you definitely get fail
Assignment Brief and Guidance:
Scenario : (continued from Assignment 1) Your team has shown the efficient of UML diagrams in OOAD and introduction of some Design Patterns in usages. The next tasks are giving a demonstration of using OOAD and DP in a small problem, as well as advanced discussion of range of design patterns. Tasks: Your team is now separated and perform similar tasks in parallel. You will choose one of the real scenarios that your team introduced about DP in previous phase, then implement that scenario based
on the corresponding class diagram your team created. You may need to amend the diagram if it is needed for your implementation. In additional, you should discuss a range of DPs related / similar to your DP, evaluate them against your scenario and justify your choice. In the end, you need to write a report with the following content: A final version of the class diagram based on chosen scenario which has potential of using DP. Result of a small program implemented based on the class diagram, explain how you translate from design diagram to code. Discussion of a range of DPs related / similar to your DP, evaluate them against your scenario and justify your choice (why your DP is the most appropriate in that case). The working application must also be demonstrated. Learning Outcomes and Assessment Criteria Pass Merit Distinction LO 3 Implement code applying design patterns P3 Build an application derived from UML class diagrams. M3 Develop code that implements a design pattern for a given purpose. D3 Evaluate the use of design patterns for the given purpose specified in M3. LO4 Investigate scenarios with respect to design patterns P4 Discuss a range of design patterns with relevant examples of creational, structural and behavioral pattern types. M4 Reconcile the most appropriate design pattern from a range with a series of given scenarios. D4 Critically evaluate a range of design patterns against the range of given scenarios with justification of your choices.
- Unit 20: Advanced Programming Assignment
- P3. Build an application derived from UML class diagrams.................................................................
- Class diagram/ Update UML Class diagram from P2
- Explanation
- Code
- Solution Explorer in visual studio....................................................................................................................
- Application Screenshot
- types........................................................................................................................................................................ P4 Discuss a range of design patterns with relevant examples of creational, structural and behavioral pattern
- 1: Design patterns
- 1.1 Definition
- 1.2 Purpose of Design patterns.......................................................................................................................
- 1.3 Type of design patterns
- Creational Design Pattern
- 2.1 Singleton Design Patterns
- 2.2 Factory Method Design Pattern................................................................................................................
- 2.3 Abstract Factory Design Patterns
- 2.4 Builder
- 2.5 Prototype
- Structural Design Pattern................................................................................................................................
- 3.1 Adapter
- 3.2 Bridge
- 3.3 Composite
- 3.4 Decorator
- 3.5 Façade
- 3.6 Flyweight
- 3.7 Proxy
- 4: Behavioral Design Pattern
- 4.1 Chain of Responsibility
- 4.2 Command
- 4.3 Iterator
- 4.4 Mediator
- 4.5 Memento
- 4.6 Observer....................................................................................................................................................
- 4.7 State
- 4.8 Strategy
- 4.9 Template Method
- 4.10 Visitor
- 1: Design patterns
- References
P3. Build an application derived from UML class diagrams.
- Class diagram/ Update UML Class diagram from P Figure 1 Class Diagram when update
- Explanation
Class diagram - Library management system:
Person : Class representing a person, be it a reader or a librarian.
Book : Class represents a book.
Borrower: Class represents one time of borrowing a book.
Figure 4 Borrower Class Class called Borrower. This class inherits from the Persons class. It has 5 public properties: ID, Name, and Phone, Address and TypeOfPosition. TypeOfPosition: An integer that identifies the borrower's location type. Figure 5 Librarian Class The Librarian class has two public properties, this class inherits from the Persons class WorkHour: An integer specifying the librarian's working hours. LibrarianRole: A string that identifies the librarian's role.
Figure 6 BookManager Class “BookManager”
ListBooks: A list of Book objects.
AddBook(): Method to add a Book object to the ListBooks list.
ShowAllBooks(): Method that displays all Book objects in the ListBooks list.
SearchBook(): Method to search for a Book object in the ListBooks list by title.
RemoveBook(): Method to remove a Book object from the ListBooks list by title.
Figure 8 Client Menu Figure 9 Switch Case 1 - 4
Figure 10 Switch Case 5 - 9
- Solution Explorer in visual studio Figure 11 Solution AssignmentAP
Case 2: Show all Person
Figure 15 Show all Person
Case 3: Show Borrower
Figure 16 Show Borrower
Case 4: Search Person by ID
Figure 17 Search Person by ID
Case 5: Add a New Book
Figure 18 Add a New Book Figure 19 Add a new Book
Case 6: Show All Book
Figure 20 Show All Book
P4 Discuss a range of design patterns with relevant
examples of creational, structural and behavioral
pattern types.
1: Design patterns
1.1 Definition
Design patterns are basically defined as reusable solutions to the common problems that arise during software design and development. They are general templates or best practices that guide developers in creating well- structured, maintainable, and efficient code. (Geekforgeek, 2023) Figure 26 Design patterns in C#
1.2 Purpose of Design patterns
Reusability:
Design patterns promote the reuse of successful designs and solutions. Once a pattern is identified
and documented, it can be applied in different parts of a system or even across multiple projects.
Scalability:
Design patterns contribute to scalable and maintainable code. They provide a consistent way of
solving problems, making it easier to scale a software system by adding new features or components.
Abstraction:
Design patterns help abstract complex systems into more understandable and manageable
components. They provide a high-level view of the system architecture, allowing developers to focus
on specific areas without being overwhelmed by details.
Maintainability:
Using design patterns can improve the maintainability of code. When developers follow well-known
patterns, it becomes easier for others (or even the original developers) to understand, maintain, and
enhance the system.
1.3 Type of design patterns
There are three types of Design Patterns,
Creational Design Pattern
Structural Design Pattern
Behavioral Design Pattern
1.3.1 Creational Design Pattern
Definition: Creational Design Pattern abstract the instantiation process. They help in making a system
independent of how its objects are created, composed and represented. (GeekforGeek, 2023)
There are 5 type of Creational Design Pattern:
Figure 27 type of Creational Design Pattern