UML_basics

Question 1

A UML class diagram is made up of …

Answer 1

A set of classes and a set of relationships between classes

Question 2

Purpose of Class Diagrams

Answer 2

Shows static structure of classifiers in a system

Question 3

What is a Class

Answer 3

A description of a group of objects all with similar roles in the system

Question 4

Class consists of …

Answer 4

attributes (Structural features) and operations (Behavioral features)

Question 5

A class notation consists of three parts: …, Class Attributes, Class Operations (Methods)

Answer 5

Class Name

Question 6

What is Class Relationships?

Answer 6

Connection with other classes

Question 7

Type of relationship when subclass is specialization of super class

Answer 7

inheritance

Question 8

Structural link between two class

Answer 8

association

Question 9

A special type of association. It represents a “part of” relationship

Answer 9

aggregation

Question 10

A special type of aggregation where parts are destroyed when the whole is destroyed.

Answer 10

Composition

Question 11

Exists between two classes if the changes to the definition of one may cause changes to the other

Answer 11

Dependency

Question 12

They often have a small arrowhead to show the direction in which direction to read the relationship

Answer 12

Relationship Names

Question 13

… are written at the ends of an association line and describe the purpose played by that class in the relationship.

Answer 13

Roles

Question 14

The arrows indicate whether, given one instance participating in a relationship, it is possible to determine the instances of the other class that are related to it.

Answer 14

navigability

Question 15

denotes public attributes or operations

Answer 15

+

Question 16

denotes private attributes or operations

Answer 16

-

Question 17

denotes protected attributes or operations

Answer 17

#

Question 18

denotes package attributes or operations

Answer 18

~

Question 19

How many objects of each class take part in the relationships

Answer 19

Multiplicity

Question 20

Should we use multiple or a single class diagram for modeling the problem?

Answer 20

it is better to use multiple class diagrams

Question 21

Thus, if you take the … you draw a diagram that represents the concepts in the domain under study

Answer 21

conceptual perspective

Question 22

The … is considered language-independent

Answer 22

conceptual perspective

Question 23

Thus, if you take the … we are looking at the interfaces of the software, not the implementation.

Answer 23

specification perspective

Question 24

The diagrams are interpreted as describing software implementations in a particular technology and language.

Answer 24

implementation perspective

Question 25

if you take the … we are looking at the software implementation.

Answer 25

implementation perspective

Question 26

navigability может быть

Answer 26

одно направленным и дву направленным

Question 27

Java имеет только две явные конструкции для отражения связей: … и …

Answer 27

extends (наследование) и implements (реализация)

Question 28

2 different types of languages:

Answer 28

for real software and for design

Question 29

Code from UML is …

Answer 29

too simple

Question 30

UML from real code is …

Answer 30

too complex and difficult to understand

Question 31

There are lots of question that … real code and design

Answer 31

differ

Question 32

model driven development

Answer 32

подход в разработке: сначала генерируется скелет, а потом дополняется

Question 33

реверс инжениринг

Answer 33

нарисовать высокоуровневый UML, чтобы понять что происходит