CH4 (test bank)

Question 1

T/F: Two techniques to identify things in the problem domain are the noun technique and the verb technique.

Answer 1

F, the noun technique and the brainstorming technique.

Question 2

T/F: When identifying things in the problem domain, an analyst should focus primarily on tangible things about which information is required.

Answer 2

F, not just primarily on tangible things.
(roles played, organizational units, devices, sites/locations, incidents, events, or interactions)

Question 3

T/F: When using the brainstorming technique it is often helpful to think about each use case and talking to users.

Answer 3

T

Question 4

T/F: The noun technique can be thought of as a variation of the brainstorming technique.

Answer 4

F, it is not a variation.

Question 5

T/F: When using the noun technique, the analyst begins by listing all the nouns that the users mention

Answer 5

T

Question 6

T/F: The cardinality of a class is a measure of the number of objects in the class.

Answer 6

F, Multiplicity. Cardinality is term for number of relationships in entity relationship diagrams.

Question 7

T/F: The ERD crows feet cardinality constraint indicates a mandatory many relationship.

Answer 7

F.

Question 8

In UML a zero to many multiplicity constraint is shown with a “O” and crows feet on the line.

Answer 8

F

Question 9

A class of objects is equivalent to a set of objects.

Answer 9

T

Question 10

A superclass only exists as part of a generalization/specialization.

Answer 10

T

Question 11

An abstract class is used to describe a “thing” that is abstract, i.e. not tangible.

Answer 11

F,

Question 12

A composite object only exist as part of a whole-part relationship.

Answer 12

T

Question 13

In generalization/specialization the objects in a subclass are always also contained in the parent class.

Answer 13

T

Question 14

The specific area of the user’s business need that is within the scope of the new system is called the _______.

Answer 14

problem domain

Question 15

One technique to find the “things” that need to be included in the new system begins by starting with a user and the use cases and then try to identify the necessary informational “things.” This technique is called the _______.

Answer 15

brainstorming technique

Question 16

One technique for finding “things” that need to be in the new system is done by the analyst starts making lists of “things.” He may do this from information and even without talking to the users extensively. This technique is called the _______.

Answer 16

noun technique

Question 17

What is the difference between the brainstorming technique and the noun technique?

Answer 17

The noun technique:
- without extensive help of user
- starts by making a list of “things” from information

The brainstorming technique:
- with help of user
- starts with the user and the use cases and then trying to identify the neccessary “things”

Question 18

When making a list of nouns to determine what are the important “things” for the new system, there are three question that should be asked about each noun. Which of the following is one of those questions?
a. Is it a tangible item?
c. Who needs information about this item?
b. Is it an abstract item?
d. Should it be researched further?

Answer 18

d. Should it be researched further?

Question 19

A piece of information about a particular object is called a(n) _______.

Answer 19

attribute

Question 20

An example of an attribute of an object might be _______.
a. an inventory item
c. a social security number
b. items on a purchase order
d. a calendar

Answer 20

c. a social security number

Question 21

An attribute whose value uniquely identifies an object is called a(n) _______.

Answer 21

key attribute

Question 22

A(n) _______ is a naturally occurring association among specific things.

Answer 22

relationship

Question 23

The number of associations that occur among specific things in an entity relationship diagram is called ____.

Answer 23

cardinality

Question 24

A synonym for cardinality (used with UML class diagrams) is ____.

Answer 24

multiplicity

Question 25

____ is used to describe the relationship between two things of the same type, such as one person being married to another person.

Answer 25

Unary association

Question 26

An attribute that contains a collection of related attributes is called a(n) _______.

Answer 26

compound attribute

Question 27

A measure of the number of links between one object and another object in a relationship is called the _______.

Answer 27

cardinality

Question 28

In the traditional approach to system development, the system stores information about ____.

Answer 28

data entities

Question 29

The crows feet notation on an ERD is a type of _______ constraint

Answer 29

cardinality

Question 30

A relationship that has a cardinality constraint of one or more is a(n) _______ relationship.

Answer 30

mandatory

Question 31

The domain model class diagram is used to _______ .
a. show the software classes in the problem domain layer of the system c. show the data entities for the new system
b. show the things involved in the user’s work that are important
d. show the relationships among the data entities

Answer 31

b. show the things involved in the user’s work that are important

Question 32

A relationship between a “sports team” and the players, coaches, and sponsor would be described as what kind of relationship?

Answer 32

Aggregation

Question 33

Which of the following relationships would NOT be an appropriate way to describe a relationship between an employee and his/her manager?
a. Unary relationship
c. Generalization/Specialization relationship
b. Binary relationship
d. Association relationship

Answer 33

d. Association relationship

Question 34

As association class is frequently required for what kind of relationship?
a. zero to one
c. many to many
b. one to many
d. zero to many

Answer 34

c. many to many

Question 35

In UML the constraint denoted by “0..*” indicates what?

Answer 35

an optional relationship

Question 36

Which of the following is NOT true about a UML class.
a. It is a classification of objects.
c. It is similar to a data entity.
b. It is a set of objects.
d. It has multiplicity.

Answer 36

d. It has multiplicity.

Question 37

_____ is based on the idea that people classify things in terms of similarities and differences.
a. Aggregation
c. Multiplicity
b. Composition
d. Generalization/Specialization

Answer 37

d. Generalization/Specialization

Question 38

A concept that allows subclasses to share the characteristics of their superclasses is called ____.

Answer 38

inheritance

Question 39

A class that represents a many-to-many association between two other classes is called a(n) ____ class.

Answer 39

association

Question 40

If we modeled a “sale” and the “sale items” with a whole-part relationship, it would best be described as a _______ relationship.

Answer 40

composite

Question 41

In a generalization/specialization relationship, it would not make sense for a class at the bottom of the hierarchy to be a(n) ______ class.

Answer 41

abstract

Question 42

Inheritance describes a condition between classes where _______ .
a. some classes are always abstract
c. classes are part of other classes
b. subclasses inherit the names from superclasses
d. classes share some attributes

Answer 42

d. classes share some attributes

Question 43

When analyzing the list of nouns to determine whether to include a particular noun as an important “thing,” which of the following questions should be asked about the noun? (choose two)
a. If assumptions change will it be important?
d. Is it an attribute of some other thing?
b. Is it tangible?
e. Are there multiple instances of it?
c. Is it unique?
f. Is it identifiable?

Answer 43

c. Is it unique?
e. Are there multiple instances of it?

Question 44

When analyzing the list of nouns to determine whether to exclude a particular noun as an important “thing,” which of the following questions should be asked about the noun? (choose two)
a. Is it in the domain?
d. Is it identifiable?
b. Is it a synonym of an existing thing?
e. Is it a persistent item?
c. Is it a tangible item?
f. Is it an output from the system?

Answer 44

b. Is it a synonym of an existing thing?
f. Is it an output from the system?

Question 45

A technique to identify problem domain objects in which developers and users work together in an open group setting is called the _______ .

Answer 45

brainstorming technique

Question 46

The technique for finding problem domain objects by finding and listing all the nouns in a dialog or description is called the _______.

Answer 46

noun technique

Question 47

A descriptive piece of information about a thing or object is called a(n) _______.

Answer 47

attribute

Question 48

In UML notation for object-oriented approach the term _______ is used instead of cardinality.

Answer 48

multiplicity

Question 49

_______ is used to describe the actual range of linkups allowed in an association (the minimum and maximum values).

Answer 49

Multiplicity constraints/Cardinality constraints

Question 50

The diagram consisting of data entities and their relationships is called a(n) _______ .

Answer 50

entity-relationship diagram (ERD)

Question 51

When words are concatenated together to form a single word and the first letter of each is capitalized it is called _______ notation.

Answer 51

camelback

Question 52

An association that is also treated as a class is called a(n) _______.

Answer 52

association class

Question 53

A UML class that never has any objects within the class is called a(n) _______.

Answer 53

abstract class

Question 54

A UML class that is allowed to have a set of actual objects within it is called a(n) _______.

Answer 54

concrete class

Question 55

In a relationship where there are superclasses and subclasses, the relationship is called a(n) _______ relationship.

Answer 55

generalization/specialization

Question 56

The idea that the attributes of a superclass are also attributes of a subclass is called ______.

Answer 56

inheritance

Question 57

The general relationship between classes in which one class is a part or component of another class is called a(n) _______ relationship.

Answer 57

whole-part

Question 58

A type of relationship where between classes where the objects in one class are a part of the objects in another class BUT they can also exist as separate objects alone.

Answer 58

aggregate relationship (aggregation)

Question 59

A type of relationship where between classes where the objects in one class are a part of the objects in another class AND they can only exist as part of the totality.

Answer 59

(composition) composite relationship