Deck 8: Structural Modeling

Question 1

Structural modeling helps to find the ________ of an object-oriented information system.

A) basic building blocks
B) boundaries
C) scope
D) requirements

Answer 1

basic building blocks

Question 2

Structural modeling is needed to support a system's ________.

A) structure
B) behavior
C) expansion
D) boundary

Answer 2

behavior

Question 3

Monolithic structures are ________.

A) difficult to build
B) expensive to maintain
C) inflexible
D) all of the above

Answer 3

all of the above

Question 4

A flexible and reliable information system needs ________ that satisfy the specific requirements of the structural modeling.

A) programmers
B) analysts
C) building blocks
D) resources

Question 5

Which of the following may be the aim of a structural modeling?

A) understanding an existing structure
B) building an entirely new structure
C) changing an existing structure
D) any of the above

Question 6

In the virtual world of software, a class is ________ of an object.

A) representative
B) a template
C) an abstraction
D) none of the above

Question 7

In the virtual world of software, a class is ________ to create an object

A) a template
B) an excuse
C) the reason
D) conceptualized

Question 8

A class is ________.

A) an abstraction of objects
B) a template for creating objects
C) a building block of modeling
D) all of the above

Question 9

The "________" analogy holds true for classes as well as objects.

A) black box
B) white box
C) either A or B
D) neither A nor B

Question 10

Encapsulation results in two spaces: ________.

A) inside and outside
B) public and private
C) upside and downside
D) both A & B

Question 11

The interface of an object is the ________ that it offers to the outside world.

A) attributes
B) services
C) classes
D) none of the above

Question 12

The interface of an object is defined by two factors: ________ it offers and ________ the offerings are presented to other entities.

A) what, how
B) when, where
C) what, where
D) when, how

Question 13

An object's interface is a ________ between the object and the entities that use it.

A) bridge
B) class
C) contract
D) gap

Question 14

Class name must be a ________.

A) noun
B) noun phrase
C) either A or B
D) neither A nor B

Question 15

Which of the following is a correct name for a class in UML notation?

A) medicalServices
B) MedicalService
C) medical service
D) AmedicalService

Question 16

To discover business objects, we must start by mining the ________.

A) flow of use cases
B) scope of the system
C) goal of the system
D) name of the system

Question 17

To discover class candidates we should ________.

A) identify nouns that serve as grammatical objects
B) identify verbs
C) neither A nor B
D) both A & B

Question 18

The operation of an object represents ________.

A) what the object does
B) what an object knows
C) neither A nor B
D) either A or B

Question 19

The attributes of an object represents ________.

A) what an object knows
B) what an object does
C) either A or B
D) both A & B

Question 20

"dateOfBirth" is a correct name for ________.

A) an attribute
B) a operation
C) an object
D) a class

Question 21

"Addresses" is a name for ________.

A) a composite class
B) an abstract class
C) a collection class
D) a sub-class

Question 22

A ________ carries out the responsibilities of another class.

A) collaborator class
B) concrete class
C) sub-class
D) none of above

Question 23

Association is a ________ relationship that defines the link between objects of one class with the objects of another class.

A) logical
B) structural
C) physical
D) either A or C

Question 24

________ is a relationship that defines the connection between objects of one class with the objects of another class.

A) A constraint
B) A class diagram
C) An association
D) An exclusion

Question 25

Class diagram is all about classes and their ________.

A) attributes
B) operations
C) interrelationships
D) none of the above

Question 26

Multiplicity specifies how many ________ of one class can associate with instances of another class.

A) instances
B) attributes
C) operations
D) types

Question 27

"A Patient is covered by an Insurance Policy" is an example of ________.

A) aggregation
B) generalization
C) inheritance
D) association

Question 28

Multiplicity can be expressed as ________.

A) one number
B) a set of numbers
C) a range of numbers
D) any of the above

Question 29

"A student must register for at least 6 credits per semester but cannot enroll in more than 18" is an example of ________.

A) multiplicity
B) composition
C) constraint
D) multiplicity constraint

Question 30

Aggregation represents the relationship of a(n) ________.

A) whole to a part
B) object to a class
C) whole to a whole
D) part to a part

Question 31

If an aggregate relationship is very strong, it is called ________.

A) collaboration
B) composition
C) collection
D) condition

Question 32

Collection objects are a special kind of ________.

A) aggregation
B) composition
C) either A or B
D) classification

Question 33

In design and implementation, aggregation is called ________.

A) tight coupling
B) loose coupling
C) binding
D) composition

Question 34

In design and implementation, composition is called ________.

A) tight coupling
B) loose coupling
C) aggregation
D) special case

Question 35

"A fulltime student must take at least 12 credits per semester" is an example of ________.

A) a constraint
B) an association
C) an aggregation
D) generalization

Question 36

Generalization is abstracting common elements shared by a set of classes into a(n) ________.

A) subclass
B) superclass
C) aggregation
D) composition

Question 37

Specialization is creating a ________ from an existing class by defining elements that are too specific for the parent class.

A) subclass
B) superclass
C) either A or B
D) neither A or B

Question 38

"A car class embodies properties common to SUV, sedan, and compact classes" is an example of ________.

A) specialization
B) generalization
C) either A or B
D) neither A or B

Question 39

Generalization and specialization are often dictated by ________.

A) the goal of the system
B) the programmer
C) business needs
D) the analyst

Question 40

Usually you need ________ to clarify class relationships from different, but overlapping viewpoints.

A) multiple class diagrams
B) a single class diagram
C) overlapping class diagrams
D) abstract classes

Question 41

A class name must express or imply action.

Question 42

The interface of an object, once formalized and made available for use, can be easily changed.

Question 43

A composite object is the same as a collection object.

Question 44

A class diagram is the most widely used tool in modeling for object-oriented development.

Question 45

An information system is built from the inside out.

Question 46

Objects are the elementary particles of an information system.

Question 47

The first structural model of an information system is around business concepts defined as classes and their connections.

Question 48

We refer to use cases to discover business classes.

Question 49

In planning for building an information system, we design the logical relationship before arriving at the physical specifications.

Question 50

When we develop an information system, choosing the right building block and the right viewpoint at the right time is critical.

Question 51

A structural model can have only one combination of scope, texture, and view.

Question 52

In the virtual world of software, a class is either an abstraction of an object or a template to create it.

Question 53

Objects are the smallest units of an information system.

Question 54

Conceptual modeling is primarily concerned with discovering classes as the building blocks of the information system.

Question 55

An information system object does not interact with outside entities to provide services.

Question 56

In object-oriented terminology, encapsulation means that the data and processes that make up an object are visible.

Question 57

Encapsulation can by no means enable the object to enforce business rules.

Question 58

If a business rule is implemented within a relevant class, then the rest of the system does not have to know about the rule.

Question 59

The interface of an object is defined by two factors: what it offers and how the offerings are presented to other entities.

Question 60

An object's interface is a contract between the object and the entities that use it.

Question 61

The interface of an object does not have to be structured in a predictable manner.

Question 62

"ThePatient" is a perfect name for a class.

Question 63

An object knows its attributes.

Question 64

Classes define the containers of data, while their contents are provided by objects.

Question 65

A Plane class does not fly; a plane object does.

Question 66

A public attribute or operation is invisible to all entities.

Question 67

A private attribute or operation cannot be (directly) accessed by outside entities.

Question 68

Composite objects can be nested in a hierarchy.

Question 69

A collection object is a special case of a composite object.

Question 70

A collection class is exempt from the rule that class names must be singular.

Question 71

The services that a class defines and an object provides to the outside world are termed the "responsibilities" of the class or the object.

Question 72

The results of use case parsing must be considered as final class definitions.

Question 73

"dateOfBirth" is a correct name for a class.

Question 74

Profit is a derived attribute.

Question 75

We can make a class out of a complex attribute.

Question 76

Association describes how instances of one class cooperate with instances of another class.

Question 77

A class diagram shows a set of classes and their interrelationships.

Question 78

A class diagram does not have to have a viewpoint.

Question 79

EntertaimentSystem is an aggregate of TelevisionSet and SoundSystem.

Question 80

In structural modeling, constraints don't apply to associations.