This allows a value property (such as an engine displacement) that may be deeply nested within a containing hierarchy (such as vehicle, power system, engine) to be referenced at the outer containing level (such as vehicle-level equations). Source OMG Systems Modeling Language (SysML) 1.6
A pathname dot notation can be used to refer to nested properties within a block hierarchy. Source OMG Systems Modeling Language (SysML) 1.6
The constrained properties, such as mass or response time, typically have simple value types that may also carry units, quantity kinds, or probability distributions. Source OMG Systems Modeling Language (SysML) 1.6
The usage of a constraint binds the parameters of the constraint, such as F, m, and a, to specific properties of a block, such as a mass, that provide values for the parameters. Source OMG Systems Modeling Language (SysML) 1.6
Parametric diagrams include usages of constraint blocks to constrain the properties of another block. Source OMG Systems Modeling Language (SysML) 1.6
The constraints can be nested to enable a constraint to be defined in terms of more basic constraints such as primitive mathematical operators. Source OMG Systems Modeling Language (SysML) 1.6
Reusable constraint definitions may be specified on block definition diagrams and packaged into general-purpose or domain-specific model libraries. Such constraints can be arbitrarily complex mathematical or logical expressions. Source OMG Systems Modeling Language (SysML) 1.6
Constraint blocks define generic forms of constraints that can be used in multiple contexts. For example, a definition for Newton’s Laws may be used to specify these constraints in many different contexts. Source OMG Systems Modeling Language (SysML) 1.6
A constraint block includes the constraint, such as {F=m*a}, and the parameters of the constraint such as F, m, and a. Source OMG Systems Modeling Language (SysML) 1.6
Such constraints can also be used to identify critical performance parameters and their relationships to other parameters, which can be tracked throughout the system life cycle. Source OMG Systems Modeling Language (SysML) 1.6
