Single Source of Truth

SysML tools can ALSO be used for many graphical Model-Based Engineering tasks that benefit from Single Source Of Truth - and even without any formal System Engineering methodology (which is NOT to say that formal System Engineering is not also useful).

Webel: SysML/MBSE: Dr Darren's Open Letter on why you may initially need the Model-Based (MB) and Single Source Of Truth aspects of MBSE more than the formal Systems Engineering (SE) aspect (or even initially no formal SE process at all) to benefit most!

Cameo Simulation Toolkit: You can use Mathematica as an external maths engine to share maths between an OpaqueBehavior and a ConstraintBlock using custom auto-loaded Mathematica functions (keeps a project nice and DRY and respects Single Source of Truth)

SysMLv1.x: Limitation: The 'body' (maths formula) of an OpaqueBehavior can't be synchronised (shared) with the 'constraint' of a ConstraintBlock (directly in the SysML model). Can lead to a WET (not DRY) model and breaks Single Source of Truth!

SysPhS-1.1: In the specification model for Figure 59 the handling of the initial values for some value properties (such as for 'gravity') in Tank usages within context block ConnectedTanks is WET not DRY (breaks Single Source of Truth).

Model-Based Systems Engineering (MBSE) zone

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Most of the content concerning Model-Based Systems Engineering (MBSE) on this site can be found amongst the following related technology zones:

And under these tool zones:

UML/SysML: If you have a Boolean "state flag" attribute corresponding to a State you MUST set it on an 'entry' of the State, not on the 'effect' of a Transition into the State (otherwise with multiple incoming Transitions it could be WET and breaks SSoT).

About the Single Source of Truth (SSOT) and Don't Repeat Yourself (DRY) principles

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