Overview of SysML

Question 1

What is SysML?

Answer 1

A graphical language which consists of notations that have specific meanings that is an extension of UML

Question 2

What is the purpose of SysML?

Answer 2

To visualize communication of a system’s design among stakeholders.

Question 3

What is a namespace?

Answer 3

The model element container for other elements on the diagram

Question 4

What is the allowable model element types for a block definition diagram?

Answer 4

package, model, modelLibrary, view, block, constraintBlock

Question 5

What is the allowable model element types for a internal block diagram?

Answer 5

block

Question 6

What is the allowable model element types for a use case diagram?

Answer 6

package, model, modelLibrary, view

Question 7

What is the allowable model element types for an activity diagram?

Answer 7

activity

Question 8

What is the allowable model element types for a sequence diagram?

Answer 8

interaction

Question 9

What is the allowable model element types for a state machine diagram?

Answer 9

stateMachine

Question 10

What is the allowable model element types for a parametric diagram?

Answer 10

block, constraintBlock

Question 11

What is the allowable model element types for a requirement diagram?

Answer 11

package, model, modelLibrary, view, requirement

Question 12

What is the allowable model element types for a package diagram?

Answer 12

package, model, modelLibrary, view, profile

Question 13

What are 5 aspects of a system that SysML can represent?

Answer 13

1. structural composition, interconnection, and classification
2. flow-based, message-based, and state-based behavior
3. constraints on the physical and performance properties
4. allocations between behavior, structure, and constraints
5. requirements and their relationship to other requirements, design elements, and test cases

Question 14

What is a package diagram used for?

Answer 14

To display the way a model is organized in the form of a package containment hierarchy. It may also show the model elements that packages contain and the dependencies between packages and their contained model elements.

Question 15

What is a requirement diagram used for?

Answer 15

To display text-based requirements, the relationships between requirements (containment, derive requirement, copy) and the relationships between requirements and other model elements (satisfy, verify, refine)

Question 16

What is an activity diagram used for?

Answer 16

to specify a behavior, with a focus on the flow of control and the transformation on inputs into outputs through a sequence of actions. Commonly used as an analysis tool to understand and express the desired behavior of a system.

Question 17

What is a block definition diagram used for?

Answer 17

to display elements and the relationships between those elements. commonly used to display a system hierarchy and classification trees.

Question 18

What is an internal block diagram used for?

Answer 18

to specify the internal structure of a single block. showing the connections between internal parts of a block and the interfaces between them.

Question 19

What is a parametric diagram used for?

Answer 19

to express how 1 or more constraints (equations and inequalities) are bound to the properties of a system. They support engineering analysis, including performance, reliability, availability, power, mass, and cost. and can be used to support trade studies of candidate physical architectures.

Question 20

What are some of the common elements of the user interface of a typical SysML modeling tool?

Answer 20

• diagram area
• pallet (toolbox): typically context sensitive
• model browser: present hierarchal view of the model elements contained in the model
• toolbar: set of menu selections that support different user actions related to file management, editing, viewing, configuring tool features, and other actions

Question 21

Which part of the user interface presents a hierarchal view of the model elements contained in the model?

Answer 21

model browser

Question 22

What is the purpose of applying an MBSE method?

Answer 22

determines the modeling activities that are performed , the ordering of the activities, and the kinds of modeling artifacts produced

Question 23

What are the primary activities of the simplified MBSE method?

Answer 23

1. organize the model
2. analyze stakeholder needs to inderstand the problem to be solved, the goals the system is intended to support, and the effectiveness measures needed to evaluate how well the system supports these goals and satisfies the stakeholder needs
3. specify system requirements including required system functionality, interfaces, physical and performance characteristics, and other quality characteristics to support the goals and effectiveness measures
4. Synthesize alternative system solutions by partitioning the system design into components that can satisfy the system requirements.
5. Perform analysis to evaluate and select a preferred system solution that satisfies the system refquirements and maximizes the effectiveness measures
6. Maintain requirements traceability to ensure the proposed solution satisfies the system requirements and associated stakeholder needs.

Question 24

What are the 9 diagram kinds?

Answer 24

1. Package Diagram
2. Requirement Diagram
3. Activity Diagram
4. Sequence Diagram
5. State Machine Diagram
6. Use Case Diagram
7. Parametric Diagram
8. Block Definition Diagram
9. Internal Plock Diagram

Question 25

What are the behavior diagrams?

Answer 25

1. Activity Diagram 2. State Machine Diagram 3. Sequence Diagram 4. Use Case Diagram

Question 26

What are the structure diagrams?

Answer 26

1. Block Definition Diagram | 2. Internal Block Diagram

Question 27

What are the 5 types of SysML diagrams?

Answer 27

1. Package Diagram 2. Requirement Diagram 3. Behavior Diagram 4. Parametric Diagram 5. Structure Diagram