Icon class icon_class fas fa-quote-left icon_class_computed fas fa-quote-left Related content ExampleBlock in a Block Definition Diagram (BDD) REFERENCE CARD: Types of Block Properties and Block compartments REFERENCE CARD: Property cheat-sheet for Block 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 part SysML keywords Block value property part property reference property MD:ValueProperty MD:PartProperty MD:ReferenceProperty values compartment parts compartment references compartment Keywords systems engineering Model-Based Systems Engineering SysML Systems Modeling Language Previous snippet The Internal Block Diagram in SysML captures the internal structure of a block in terms of properties and connectors between properties. Full quote A block can include properties to specify its values, parts, and references to other blocks. Next snippet Ports are a special class of property used to specify allowable types of interactions between blocks ... Related snippets Blocks are modular units of system description. Blocks provide a general-purpose capability to model systems as trees of modular components. The specific kinds of components, the kinds of connections between them, and the way these elements combine to define the total system can all be selected according to the goals of a particular system model. Parts in these systems may interact by many different means, such as software operations, discrete state transitions, flows of inputs and outputs, or continuous interactions. The Block Definition Diagram in SysML defines features of blocks and relationships between blocks such as associations, generalizations, and dependencies. It captures the definition of blocks in terms of properties and operations, and relationships such as a system hierarchy or a system classification tree Related snippets (backlinks) Constraint properties are further defined in Clause 10. A port is another category of property, as further defined in Section 9. A property typed by a Block that does not have composite aggregation is classified as a reference property. A property typed by a SysML Block that has composite aggregation is classified as a part property, except for the special case of a constraint property ... A property typed by a SysML ValueType is classified as a value property, and always has composite aggregation. Part, reference, value, and constraint properties may be shown in block definition compartments with the labels "parts," "references," "values," and "constraints" respectively. Properties of any type may be shown in a "properties" compartment or in additional compartments with user-defined labels. Visit also Visit also (backlinks) Flags
