Icon class icon_class fas fa-quote-left icon_class_computed fas fa-quote-left Related content Source OMG Systems Modeling Language (SysML) 1.6 Copyright information About Object Management Group copyright in text extracts quoted from OMG specifications for educational purposes Snippet kind INFO UML keywords Property BehavioralFeature Operation Reception SysML keywords DirectedFeature FeatureDirectionKind::required value property block property Previous snippet (the owning block for features on types of proxy ports is the type of the block usage the proxy port is standing in for, which might be an internal part). Full quote Using non-flow properties means to read or write them, and using behavioral features means to invoke them. Next snippet Provided non-flow properties are read and written on the owning block, while required non-flow properties are read or written on an external block Related snippets [SysML1.6: PREFER SysML1.7] A DirectedFeature indicates whether the feature is supported by the owning block (provided), or is to be supported by other blocks for the owning block to use (required), or both ... Related snippets (backlinks) Provided behavioral features are invoked with the owning block as target, while required behavioral features are invoked with an external block as target (required). Visit also Visit also (backlinks) Flags