SysMLv1.x

SysML/UML: MagicDraw/Cameo: GOTCHA: Connecting a typed OutputPin to an untyped (UNSPECIFIED) InputPin with an ObjectFlow changes the type of the InputPin

Webel: SysML4Mathematica: Convention: A '$E' in a function name indicates that all parameters (arguments and return) are Mathematica '_' expressions. However, when representing such functions as Activities they may end up getting strongly typed in tools!

TIP: Webel: SysML/UML: On the boundary of symbols for ConstraintParameters on a ConstraintProperty (ConstraintBlock usage) symbol in Parametric Diagrams use any placement or "ordering" of ConstraintParameter symbols that works for the diagram!

TIP: Webel: SysML/UML: On the boundary of Action symbols in Activity Diagrams use any placement or "ordering" of Parameter symbols that works for the diagram. Ignore the Parameter ordering of Operation and Behavior signatures completely!

Webel: SysML4Mathematica: When modelling the main logic flow of Mathematica code with Activity Diagrams it isn't necessary to model every Mathematica construct. Placeholder Actions, OpaqueActions , and OpaqueBehaviors (as CallBehaviorActions) may be used.

Webel: SysML4Mathematica: Cameo Systems Modeler: Can perform calculations with a custom Quantity ValueType (for Mathematica) directly, but DOES NOT perform units-aware algebra (no automatic conversions)

SysML/UML: MagicDraw/Cameo: To display the body of an OpaqueBehavior on a usage (CallBehaviorAction) in an Activity Diagram use an element property callout of 'Body' into a Note with a handle to the CallBehaviorAction

Webel: SysML4Mathematica: An '@' prefix in the name of a Block indicates a data structure (such as an Association or List) that does not have a corresponding MTools class or a Webel Abstract Data Type (ADT) "pseudo class" in the Wolfram Language code.

Webel: SysML4Mathematica: An '@' prefix in the name of a ConstraintBlock, Activity, or OpaqueBehavior indicates that it is a "@pseudo" function not represented directly in the Wolfram Language or Webel code libraries (typically for minor maths or logic)

Webel: Domain Modelling in graphical SysML (and the best SysML tools) is massively, hugely, compellingly, better than in any other language (or tool). [OWL does something very useful but different.]

Screencast: Cameo Simulation Toolkit: v19SP3: Analysis: When a Property is typed by an abstract Block an instance of a concrete specialising Block will automatically be created and assigned even when the lower multiplicity is 0

Keywords

• MagicDraw SysML
• MagicDraw UML
• Magic Model Analyst [Cameo Simulation Toolkit]
• Cameo Systems Modeler
• SysML
• MD SysML
• Systems Modeling Language
• Unified Modeling Language
• UML
• SysMLv1.x

Video style

• screencast
• narrated
• 4K

This screencast video is an analysis of this suspected issue:

Cameo Simulation Toolkit: v19SP3: GOTCHA/BUG: When a Property is typed by an abstract Block an instance of a concrete specialising Block (where available) will automatically be created and assigned even when the lower multiplicity is 0

It also includes a nice demo of using an Activity and Actions to simulate instance creation and assignment in Magic Model Analyst^® (Cameo Simu

• Read more about Screencast: Cameo Simulation Toolkit: v19SP3: Analysis: When a Property is typed by an abstract Block an instance of a concrete specialising Block will automatically be created and assigned even when the lower multiplicity is 0

Cameo Simulation Toolkit: v19SP3: GOTCHA/BUG: When a Property is typed by an abstract Block an instance of a concrete specialising Block (where available) will automatically be created and assigned even when the lower multiplicity is 0

UML2/SysML1.x: Property: derived vs derived union vs subsetted

UML2/SysML1.x: If AggregationKind 'shared' has meaning to you (and if you use it consistently without contradicting the use of 'composite' aggregation elsewhere in your model) by all means use it. Damn the purists! But it's going to die in SysMLv2 anyway.

Using Model-Based Systems Engineering with ANY version of Systems Modeling Language (SysML) is better than just doing drawings in a graphics tool or presentation tool

You DO NOT have to wait for SysMLv2 to do Model-Based Systems Engineering with SysML! You can do MOST of what you need to do with SysMLv1.6/1.7 and you WILL be able to migrate models to SysMLv2 once tool support matures. Start your SysML models NOW!

MagicDraw/Cameo v19SP3: UML/SysML: HOWTO Set an OpaqueExpression on a Slot that seems to be stuck on a numerical value.

In UML/SysMLv1.x Lifelines do not have specific information about the times or time ordering of events (such as Message arrival/sending) of other Lifelines

Webel: SysMLv1.x: AVOID (where possible) SysML Unit names that are the same as unit symbols. Unit names SHOULD start with a lower case Latin alpha letter. Custom Unit names should be a single lower case word or lowerCamelCase.