Week 1 - Into to Module

Question 1

What is system modeling?

Answer 1

Process of developing abstract models of a system, each model gives a different view of the system.

Question 2

What is the purpose of each system model?

Answer 2

Each model provides a different view of the system to help understand its functionality and communicate with customers.

Question 3

What is used to represent system models?

Answer 3

Graphical notations, usually using the Unified Modeling Language (UML).

Question 4

What is the aim of system modeling?

Answer 4

The aim is to aid understanding of the functionality of the system and facilitate communication with customers.

Question 5

How are existing system models used during requirements gathering?

Answer 5

They clarify the function of the existing system and provide a basis for discussing its pros and cons.

Question 6

What do existing system models clarify?

Answer 6

They clarify how the existing system functions and serve as a basis for discussion.

Question 7

What is the role of existing system models in decision-making?

Answer 7

Existing system models make decision-making easier by presenting the system’s pros and cons.

Question 8

How are system models used during requirements engineering?

Answer 8

They are used to explain proposed requirements to stakeholders and during discussions about the system design and implementation.

Question 9

How do engineers use system models?

Answer 9

Engineers use system models to discuss design proposals and system implementation.

Question 10

What is model-driven engineering?

Answer 10

Model-driven engineering is a process that generates complete or partial system implementations from system models.

Question 11

What can model-driven engineering generate?

Answer 11

It allows for the generation of complete or partial system implementations based on the system models created.

Question 12

What are the four system perspectives?

Answer 12

External, Interaction, Structural, Behavioral.

Question 13

What is the external perspective of system modeling?

Answer 13

It models the context or environment of the system.

Question 14

What does the interaction perspective of system modeling involve?

Answer 14

It models the interactions between a system and its environment, as well as between different components of the system.

Question 15

What does the structural perspective of system modeling show?

Answer 15

It models the organization of a system or the structure of data being processed within the system.

Question 16

What does the behavioral perspective of system modeling focus on?

Answer 16

It models the dynamic behavior of the system and its responses to events.

Question 17

What are the five UML diagram types?

Answer 17

Activity, Use Case, Sequence, Class, State.

Question 18

What is an activity diagram used for?

Answer 18

Shows the activities involved in a process or in data processing.

Question 19

What does a use case diagram illustrate?

Answer 19

Shows interactions between a system and its environment.

Question 20

What is shown in a sequence diagram?

Answer 20

Shows interactions between actors and the system or between system components.

Question 21

What does a class diagram represent?

Answer 21

Shows object classes in the system and the associations between these classes.

Question 22

What does a state diagram show?

Answer 22

Shows system reactions to internal and external events.

Question 23

How do graphical models facilitate discussions about a system?

Answer 23

They help facilitate discussions about an existing or proposed system, even if the model isn’t complete.

Question 24

When documenting a system, how accurate should the graphical model be?

Answer 24

It should be accurate and kept up to date rather than aiming for completeness.

Question 25

What can completed graphical models be used for?

Answer 25

They can be used to generate a system implementation.

Question 26

Why are system models important during requirements gathering?

Answer 26

They clarify how the existing system functions and provide a basis for discussing pros and cons, aiding decision-making.

Question 27

What language is typically used to create system models?

Answer 27

Unified Modeling Language (UML).

Question 28

What is the primary goal of using graphical notations in system modeling?

Answer 28

To aid in understanding the system’s functionality and facilitate communication with customers.

Question 29

How do system models help engineers during system design?

Answer 29

They allow engineers to discuss design proposals and system implementation.

Question 30

What happens during model-driven engineering?

Answer 30

It generates complete or partial system implementations from system models.

Question 31

What is the purpose of the external system perspective?

Answer 31

To model the context or environment of the system.

Question 32

What does the interaction perspective of a system focus on?

Answer 32

It models interactions between the system and its environment or other system components.

Question 33

Why is the structural perspective important in system modeling?

Answer 33

It models the organization of the system and the structure of data being processed.

Question 34

What aspect does the behavioral perspective of a system cover?

Answer 34

It models the dynamic behavior of the system and its event responses.

Question 35

Which UML diagram type is used to show system reactions to internal and external events?

Answer 35

State diagrams.

Question 36

How can graphical models help in discussions about a system?

Answer 36

They facilitate discussion, even if the models aren’t complete, by supporting communication and understanding.

Question 37

What should be prioritized when documenting a system through graphical models?

Answer 37

Accuracy and keeping the model up to date.

Question 38

When do graphical models need to be complete?

Answer 38

When they are being used to generate a system implementation.

Question 39

What type of UML diagram would you use to model interactions between actors and the system?

Answer 39

Sequence diagrams.

Question 40

What UML diagram shows object classes and their relationships?

Answer 40

Class diagrams.

Question 41

What can a system’s existing models indicate during discussions with stakeholders?

Answer 41

They help explain the proposed requirements and system functionalities.

Question 42

Why is modeling the environment of a system essential in system modeling?

Answer 42

It provides context for how the system interacts with external factors.

Question 43

How does the use of UML diagrams improve communication with customers?

Answer 43

UML diagrams provide a graphical and standardized way to represent system functionalities, making it easier for non-technical stakeholders to understand.