Icon class icon_class fas fa-quote-left icon_class_computed fas fa-quote-left Related content ItemFlow without and with itemProperty - and compatible ItemFlows SysML: Whether you use a Block, ValueType, or Signal to represent something that flows (and can be applied to an ItemFlow) depends on what you want to achieve. If you want to indicate something structured with value properties with Units use a Block. SysML: Flows: If you intend to use a Classifier to type the itemProperty of an ItemFlow on a Connector use a ValueType or Block rather than a Signal, otherwise you'll get probably-unwanted signal receptions on the owning context Block. SysML+SysPhS: Flows: If you intend to use a Classifier to type the itemProperty of an ItemFlow on a Connector for a physical interaction you MUST use a Block (not a ValueType or Signal) so your can extend ConservedQuantityKind. 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 NOTATION UML keywords InformationFlow SysML keywords ItemFlow Previous snippet Full quote Item flows on connectors shall be compatible with flow properties of the blocks usages at each end of the connector, if any. The direction of the item flow shall be compatible with the direction of flow specified by the flow properties. Next snippet Each classifier of conveyed items on an item flow shall be the same as, a specialization of, or a generalization of at least one flow property type on each end of the connected block usages (or their accessible nested block usages recursively, ... Related snippets An ItemFlow describes the flow of items across a connector or an association. It may constrain the item exchange between blocks, block usages, or ports as specified by their flow properties. Related snippets (backlinks) Visit also Visit also (backlinks) Flags
