ARCHIVAL (2022): This content is now considered historical only!

[OBSOLETE] Until tool support for ~InterfaceBlock comes you have to make a decision: (1) Bake your own «~InterfaceBlock» then deal with clashes when tool support comes; (2) stick with the DEPRECATED UML conjugation (not nested-port friendly).

 ARCHIVAL (2022): This content is now considered historical only!
Icon class
icon_class
far fa-sticky-note
icon_class_computed
far fa-sticky-note
Note kind
DEPRECATION
WARNING
Policy level
INFORMATIVE
Specification keywords
SysML-1.6
UML keywords
Port::isConjugated
SysMLv1.x keywords
InterfaceBlock
~InterfaceBlock
conjugation
[HISTORICAL] MagicDraw/Cameo 19SP3: Does NOT yet support ~InterfaceBlock [NOW SUPPORTED in 2024x Golden]
The following is now OBSOLETE in recent tool versions and is only provided here for older tool users. Upgrade your tool instead.
Webel recommended this HACK :
[HISTORICAL] HOWTO easily "hack" the SysML-1.6 ~InterfaceBlock conjugation and «~interfaceBlock» keywords in MagicDraw/Cameo. [NOW SUPPORTED 2024x Golden]
It may mean you have to do a bit of sorting out when the SysML-1.6 compliant tool version of «~interfaceBlock» arrives, but at least your model will be correct. And:
MagicDraw/Cameo: You can easily find all elements a Stereotype has been applied to using Edit > Find OR via a Generic Table Diagram with the Stereotype as the 'Element type' (with or without sub-types).
This is better than sticking with the now-deprecated UML Port conjugation:
In SysML the NOW DEPRECATED (since SysML-1.6) direct UML Port conjugation does not work consistently with SysML DirectedFeature and SysML FlowProperty on nested ports!
MagicDraw/Cameo 19SP3 still supports the DEPRECATED UML Port conjugation (but it is recommended here that you DO NOT use it, even though there might be future migration for such directly conjugated Ports).
Model integrity beats convenience!
Relates to
HOWTO: Send and receive a Signal via Ports in SysML and Cameo Simulation Toolkit
Figure 65: Internal structure of the total humidifier system - black box vs details
Conjugation in SysML-1.7 is Type-based: InterfaceBlock, ~InterfaceBlock, and DirectedFeature
SysMLv1: Summary of some important changes between SysMLv1.2 and SysMLv1.7 [PARTIAL LIST ONLY]
Related notes
[ISSUE, WARNING] In SysML the NOW DEPRECATED (since SysML-1.6) direct UML Port conjugation does not work consistently with SysML DirectedFeature and SysML FlowProperty on nested ports!
[TIP] Place your SysML-1.6 ~InterfaceBlock conjugation under the 'original' InterfaceBlock (i.e. make the original the containment owner).
[POLICY] Since SysML-1.6 use of direct UML conjugation of Ports is NOT supported; If you are using InterfaceBlocks use instead a conjugated ~InterfaceBlock type!
[ASSERTION] SysML: Typing a Port by an InterfaceBlock or ~InterfaceBlock does NOT imply that the Port is a ProxyPort (but ProxyPort must be typed by an InterfaceBlock or ~InterfaceBlock)
[WARNING] The mechanism for conjugated Ports has been changed in SysML 1.6, it now conjugates the Type! If you are using an InterfaceBlock to type a Port you can conjugate that 'original' on another Port by typing it with an ~InterfaceBlock.
[TIP, WORKAROUND]{INFORMATIVE} [HISTORICAL] HOWTO easily "hack" the SysML-1.6 ~InterfaceBlock conjugation and «~interfaceBlock» keywords in MagicDraw/Cameo. [NOW SUPPORTED 2024x Golden]
[CAVEAT, TOOL]{INFORMATIVE} [HISTORICAL] MagicDraw/Cameo 19SP3: Does NOT yet support ~InterfaceBlock [NOW SUPPORTED in 2024x Golden]
Related notes (backlinks)
Related snippets (extracts)
  [SysML-1.6] The ~InterfaceBlock stereotype (shall be pronounced: "conjugated interface block") is a specialization of InterfaceBlock that has the same features as its original InterfaceBlock except that its DirectedFeatures and FlowProperties are reversed (conjugated
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Visit also (backlinks)