Icon class icon_class fas fa-quote-left icon_class_computed fas fa-quote-left Related content Figure 11-10: Continuous system example 1 {ELIDED PINS} Figure 11-10: Continuous system example 1 {EXPLICIT PINS} 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 Behavior Parameter::isStreaming execution SysML keywords SysML specification figure Continuous «continuous» Rate Previous snippet Turning the key on starts two behaviors, Driving and Braking. These behaviors execute until the key is turned off, using streaming parameters to communicate with other behaviors. Full quote The Driving behavior outputs a brake pressure continuously to the Braking behavior while both are executing, as indicated by the «continuous» rate and streaming properties (streaming is a characteristic of UML behavior parameters that supports the input and output of items while a behavior is executing, rather than only when the behavior starts and stops). Next snippet Brake pressure information also flows to a control operator that outputs a control value to enable or disable the Monitor Traction behavior. Related snippets Figure 11-10 shows a simplified model of driving and braking in a car that has an automatic braking system. Parameters may also be marked as streaming (i.e., have the isStreaming property be true). Such Parameters allow values to be passed into and out of a Behavior execution any time during its course, rather than just on invocation and completion. Discrete and continuous flows are unified under rate of flow, as is traditionally done in mathematical models of continuous change, where the discrete increment of time approaches zero. Continuous rate is a special case of rate of flow (see Rate) where the increment of time between items approaches zero. It is intended to represent continuous flows that may correspond to water flowing through a pipe, a time continuous signal, or ... Continuous ... It is independent from UML streaming, see clause 11.3.2.8. A streaming parameter may or may not apply to continuous flow, and a continuous flow may or may not apply to streaming parameters. Streaming is a characteristic of UML behavior parameters that supports the input and output of items while a behavior is executing, rather than only when the behavior starts and stops. The flow may be continuous or discrete ... Related snippets (backlinks) Visit also Visit also (backlinks) Flags
