SysML instance vs. class

user_4383152 0
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I'm a bit confused about the concept of blocks in SysML.

From UML I understand that there is a distinction between classes and instances/objects like in OOP.

However, I'm not sure how this is implemented in SysML. My questions:

  • Does SysML distinguish between classes and instances?

  • Assume I want to describe a general type of sub-system e.g. a card reader. My system should include serval instances of indentical (or parameterized) card readers. How do I best model this in SysML.

  • Currently, I'm testing the SW Enterprise Architect. Is there anything special I have to consider if I want to model classes/instances here?

Thank you for your hints.

sysml enterprise-architect instance
2 Answers

In SysML you have blocks ~ classes, and parts ~ attributes, where the SysML best practice does not aggregate blocks to blocks, i.e. when you describe subsystems you would display them as parts (instances of other blocks) of the main block.

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