Systems Analysis & Design Test 2

Question 1

An important step in using the CRUD technique is to _______.

Answer 1

Identify the data entities.

Question 2

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 2

Brainstorming technique.

Question 3

An example of an attribute of an object might be _______.

A. an inventory item B. items on a purchase order
C. a social security number D. a calendar

Answer 3

C. a social security number.

Question 4

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

Answer 4

Unary association.

Question 5

As association class is frequently required for what kind of relationship?

Answer 5

Many to many relationship.

Question 6

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

Answer 6

Inheritance.

Question 7

In a sequence diagram a horizontal dashed line represents what?

Answer 7

A return message.

Question 8

In a fully developed use case description, the flow of activities is most similar to what?

Answer 8

The flow of activities in a use case diagram is most similar to an activity diagram.

Question 9

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

Answer 9

Key attribute.

Question 10

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

Answer 10

An optional relationship.

Question 11

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

Answer 11

Inheritance.

Question 12

When a message is sent from an originating object to a destination object it means that ______.

Answer 12

A method is being invoked on the destination object.

Question 13

One column of a table in a relational database is called a(n) ____.

Answer 13

Attribute

Question 14

Two methods to show a repeating message in a system sequence diagram are:

Answer 14

An asterisk or a loop frame.

Question 15

(T/F) Relationships in a relational database are usually represented by embedding a foreign key in each participating table.

Answer 15

False

Question 16

(T/F) The CRUD technique is most useful as a cross-check along with other techniques.

Answer 16

True

Question 17

(T/F) Two difference scenarios of a use case would normally be described in a single fully developed use case description.

Answer 17

False

Question 18

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

Answer 18

True

Question 19

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

Answer 19

True

Question 20

A technique that is best used to validate the list of existing use cases is called the _____ technique.

Answer 20

CRUD

Question 21

A class that can be instantiated with objects of its type being created is called a(n) _____.

Answer 21

Concrete class.

Question 22

A(n) _____ describes the structure, content, and access controls of a physical data store or database.

Answer 22

Database schema.

Question 23

A class that cannot be instantiated with objects of its type being created is called a(n) _____.

Answer 23

Abstract class.

Question 24

An arrow on a system sequence diagram is used to depict a(n) _____.

Answer 24

message

Question 25

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

Answer 25

security and controls design.

Question 26

A key principle of human-computer interaction (HCI) that states that all controls should be noticeable and provide an indication that the control is responding to the user’s action, is called ____

Answer 26

Informative feedback.

Question 27

Which of the following diagrams is used for architectural design?

a. Interaction diagrams
b. Sate machine diagrams
c. Package diagrams
d. Component diagrams

Answer 27

Package diagrams & component diagrams

Question 28

User interface objects in a sequence diagram often are labeled with the stereotype ____.

Answer 28

View or boundary

Question 29

A key principle of human-computer interaction (HCI), that states that the appearance of any control should suggest its functionality, is called ____

Answer 29

affordance

Question 30

Which two models are the primary models in object-oriented detailed design?

Answer 30

Sequence diagram & design class diagram

Question 31

____ is a qualitative measure of the consistency of functions within a single class.

Answer 31

Cohesion

Question 32

____ is a consistent relational database state in which every foreign key value also exists as a primary key value

Answer 32

Referential integrity.

Question 33

Domain layer classes should ____.

Answer 33

prepare persistent classes for storage to the database

Question 34

Which analysis model serves as an input model to a design class diagram?

Answer 34

Domain model class diagram

Question 35

(T/F) Architectural design includes the design of specific program details.

Answer 35

False

Question 36

(T/F) Adequate feedback from a system to user data entry helps reduce errors.

Answer 36

True

Question 37

A relational database table is in third normal form (3NF) if it is in second normal form (2NF) and if no non-key field is functionally dependent on any other non-key field.

Answer 37

True

Question 38

A design principle in which objects are responsible for carrying out system processing is called _____.

Answer 38

Object responsibility.

Question 39

_____ is the notation that shows all the information required to call or invoke a method.

Answer 39

Method signature.

Question 40

The part of a contract between a business and a hosting company that guarantees a specific level of availability is called the _____.

Answer 40

Service-level agreement (SLA).