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5.1 Actor Categories
bdd [package] SYSMOD profile notations [symbols for actor categories]
Actuator Sensor
Interface system User system
Environmental influence External system
Mechanical system
FIGURE 5-2
Symbols for actor categories.
274 CHAPTER 5 Systems Engineering Profi le ??”SYSMOD
5.2 Discipline-Specifi c Elements
SysML was not designed to replace discipline-specifi c modeling languages, such
as UML or MATLAB?®/Simulink?®. SysML is used to describe a system across disciplines.
This is why the model ??™ s degree of details should stop when a mixture of
disciplines is no longer given.
If you have elements in your SysML model that can be fully allocated to one
single discipline, then it is meaningful to mark them with a stereotype.
Discipline-specifi c elements are blocks or connectors, and they may be other
elements that can be fully allocated to one single discipline. They generally form the
bottom limit of the SysML model. A discipline-specifi c block is detailed in a model
and in a language pertaining to that discipline.


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