Webel: MBSE: SysMLv1: Prefer a custom «actor» extension of a Block (such as the non-normative External) over UML-style Actor for use as parts in IBDs and on allocation swimlanes. You can also have a Trace from a block-based «actor» to a UML-style Actor.
Useful "user-defined" stereotypes for Blocks: «system context», «system», «subsystem», «external», «domain» Gallery Tutorial TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo Section 08:01: The building Blocks of SysML Slide kind SysML Block Definition Diagram (BDD)
Figure D.15 - Defining the Automotive Domain (Automotive Domain Breakdown) Gallery Tutorial TRAIL: The SysML-1.6 Hybrid SUV sample and specification diagrams in MagicDraw/Cameo (with annotations) [UNDERGOING UPDATE to SysML1.7] Section Section: SysML-1.6: HSUV sample Slide kind SysML Block Definition Diagram (BDD)
SysML: The «system», «subsystem», «external», «domain» and «system context» keywords are for "user defined" block Stereotypes (they are not part of core SysML); they are supported in MagicDraw/Cameo as Non-Normative Extensions.
The «system» and «external» stereotypes are user defined, not specified in SysML, but help the modeler to identify the system of interest relative to its environment. Source OMG Systems Modeling Language (SysML) 1.6
Figure D.4 - Establishing the Context of the Hybrid SUV System using a User-Defined Context Diagram ARCHIVAL (2023): This content is now considered historical only! Gallery Tutorial TRAIL: The SysML-1.6 Hybrid SUV sample and specification diagrams in MagicDraw/Cameo (with annotations) [UNDERGOING UPDATE to SysML1.7] Section Section: SysML-1.6: HSUV sample Slide kind SysML Internal Block Diagram (IBD)
