SysML Requirements Toolbox

When you are constructing SysML models, you can populate the Requirements diagrams using the icons on the SysML Requirements pages of the Diagram Toolbox.

Access Diagram | Toolbox : More Tools | SysML 1.3 | SysML 1.3 Requirements

SysML Requirement Objects

Page

Item

See also

Requirement

Specifies the capabilities of the system, or the conditions that it should satisfy.

Test Case

Describes the verification of a Requirement through methods of inspection, analysis, demonstration or testing.

SysML Requirement Relationships

Item

Description

Containment

Graphically displays ownership of one element within a parent element.

Trace

Declares a trace relationship between a SysML Requirement and another SysML element.

Copy

Declares a copy of one SysML Requirement by another.

Derive

Derives a SysML Requirement from another.

Verify

Declares a verification of a SysML Requirement by another SysML element.

Refine

Declares a refinement of a SysML Requirement by another SysML element.

Satisfy

Declares that the SysML Requirement is satisfied by another SysML element.

SysML Requirement Extensions

Item

Description

Extended Requirement

Extends a SysML Requirement with additional Tag properties.

Functional Requirement

Declares a SysML Requirement that describes the operation, or behavior, that the system must perform.

Interface Requirement

Declares a SysML Requirement that describes how the system connects, or interfaces with, other systems.

Performance Requirement

Declares a SysML Requirement that describes how the system performs against defined capabilities or conditions.

Physical Requirement

Declares a SysML Requirement that describes the physical characteristics, or physical constraints, of the system.

Design Requirement

Declares a SysML Requirement that specifies a constraint on the implementation of the system.

Notes

  • SysML Requirements contain the Tagged Values 'Text' and 'ID', the values of which are not immediately visible in the Tagged Values window; you can see the values more easily if you have the Summary View window open (View | Summary View) when you click on these elements