Design Patterns

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Open its course - Object Oriented Software Engineering

Design Patterns

Introduction to Designing Patterns
OO Design Principles

Favor Composition over Inheritance
Program to an interface, not to an...
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Topic Summary
- Introduction to Designing Patterns
- OO Design Principles
- Common design problems
- Design Patterns Classification
- Design Pattern Benefits
- Design Pattern Drawbacks
Topic CLO's

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CLO-6 Explain basic concepts of object-oriented software engineering using UML.

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Explain basic concepts of object-oriented software engineering using UML.
CLO-7 Develop OOSE design for problems based on real-world scenarios.

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Develop OOSE design for problems based on real-world scenarios.
CLO-8 Explain the fundamentals of software project management and software life cycle methodologies.

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Explain the fundamentals of software project management and software life cycle methodologies.
CLO-9 Develop a “real world” software system prototype using Object Oriented Software Engineering.

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Develop a “real world” software system prototype using Object Oriented Software Engineering.

Topic Questions: 115
MCQs	T/F	FiB	SQ
28	32	38	17

Question Type Legends
	Easy		Medium		Difficult

MCQs T/F FiB Short Qs

Open its course - Object Oriented Software Engineering

Multiple Choice Questions for Design Patterns

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Hidden Questions!

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1 A short statement that tells what the design pattern does is
1. Intent
2. Structure
3. Motivation
4. Applicability
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2 Which of the following is not a common designing problem:
1. Loose coupling
2. Extending functionality by sub-classing
3. Dependence on object representations or implementations.
4. Dependence on specific operations
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3 Which category of designs pattern concern with the process of object creation?
1. Creational
2. Structural
3. Behaviour
4. All Of Above
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4 Life / existence of the objects are independent of each other, But one object is playing the role of Owner of the other object
1. Association
2. Aggregation
3. Composition
4. none of these
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5 If a line points from a class to another class with an unfilled diamond then its:
1. Aggregation
2. Association
3. Composition
4. Inheritance
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6 Which one is represented by the line with filled diamond.
1. inheritance
2. Association
3. Composition
4. Interface
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7 Which of the following is represented by a line between two classes?
1. Interface
2. Association
3. Aggregation
4. Composition
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8 If a class A uses Class B for example Student uses University Bus for traveling is:
1. Dependency
2. Inheritance
3. Association
4. Composition
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9 Design patterns are valuable information, If they were undocumented then what are its effect?
1. Designer will repeat old mistakes
2. Lake of designing skills
3. Chances of Open closed principle violation
4. All of the above
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10 What makes the system and its architecture becomes more simple, maintainable, flexible and efficient
1. Code reuse
2. OOP Language
3. Design Patterns
4. None
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Multiple Choice Questions for Design Patterns

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