This example was created on the base of SysML parametric diagram of MP3 playe on page 11 of "SysML Modelling Language explained" document from the OMG Systems Modeling Language website.
"A parametric diagram is defined as a restricted form of internal block diagram. A parametric diagram may contain
constraint properties and their parameters, along with other properties from within the internal block context. All
properties that appear, other than the constraints themselves, must either be bound directly to a constraint parameter, or contain a property that is bound to one (through any number of levels of containment)." [omg.org/spec/SysML/1.3/PDF]
The example "Parametric diagram" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the SysML solution from the Software Development area of ConceptDraw Solution Park.