Property is indirectly a kind of RedefinableElement, so Properties may be redefined. The name and visibility of a Property are not required to match those of any Property it redefines. Source Unified Modeling Language 2.5.1
SysMLv1.x: An ElementGroup used for basic Parsing Analysis model element elicitation: Example 2 Gallery Tutorial TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo Section 18:01: Logical grouping with the ElementGroup extension of Comment in SysMLv1.x Slide kind MagicDraw/Cameo: table SysML Block Definition Diagram (BDD)