What is the difference between objects and classes?

Objects are instances of classes, while classes define the type of object

What is the main purpose of Object-Oriented Design?

To reason about entities and relationships

What should the design of a system be organized as, according to the Object-Oriented Solution?

A collection of objects that model concepts in the problem domain

In the context of Card Entities, what are some of the entities that make up this problem domain?

Owners, layouts, and ID numbers

What do static models in OO Analysis describe?

b) Structure of entities in the system

What defines an object in Object-Oriented Design?

Both data representation and functionality

How can developers and stakeholders ensure they are on the same page with requirements?

a) Through rigorous requirements and planning stages

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Lec7 Quiz Questions Asos

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Questions 15

Answers

1
What changes in functionality and data representation in the Object-Oriented Solution?
New style options and templates in Word Processor
Hardware interfaces in Autopilot System
All of the above
Type of information and its placement in ID Cards
2
What is the term used to describe the same operation behaving differently when used on different classes?
Polymorphism
Inheritance
Abstraction
Composition
3
What are some common problems with requirements in software development?
d) All of the above
a) Incomplete and ambiguous requirements
c) Different interpretations between developers and customers
b) Requirements drift
4
Which approach suggests structuring the system to accommodate change?
b) Object-Oriented Solution
c) Continual change
a) Good requirements and planning stages
d) Late design changes
5
What is the difference between objects and classes?
Objects are instances of classes, while classes define the type of object
Objects can have attributes, while classes cannot
None of the above
Objects have identity, while classes do not
6
What does aggregation indicate in Object-Oriented Design?
Membership between classes
None of the above
Dependence between classes
Inheritance between classes
7
What is the main purpose of Object-Oriented Design?
To program in an Object-Oriented language
To ensure OO design in programming languages
To focus on concrete instantiations of objects
To reason about entities and relationships
8
What should the design of a system be organized as, according to the Object-Oriented Solution?
A collection of objects that model concepts in the problem domain
A collection of data representations and functionalities
A collection of logical concepts
A collection of concrete entities in the real world
9
In the context of Card Entities, what are some of the entities that make up this problem domain?
Names, ages, and heights
Addresses, roles, and weights
Owners, layouts, and ID numbers
All of the above
10
How are associations between classes labeled to indicate multiplicity?
All of the above
With optional and mandatory tags
With lower and upper bounds
With single-valued and multivalued tags
11
What is the purpose of inheritance in Object-Oriented Design?
To include attributes and operations from the parent class
All of the above
To define child classes that share attributes and operations
ToCreateSpecializedVersions of classes without reimplementing functionality
12
What do static models in OO Analysis describe?
b) Structure of entities in the system
c) Changes to attributes and sequences of changes
a) Sequences of interactions between object instantiations
d) Control aspects of the system
13
What defines an object in Object-Oriented Design?
Data representation and characteristics
Both data representation and functionality
None of the above
Functionality and operations
14
How can developers and stakeholders ensure they are on the same page with requirements?
d) Through late design changes
a) Through rigorous requirements and planning stages
b) Through continual change
c) Through accommodating change in the system
15
What is the difference between aggregation and composition?
a)Aggregation implies that member objects can exist outside of the owner
b)while composition implies that the instance is destroyed with the owner
A and B
Aggregation is a stronger type of association than composition

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