Combined Fragment operators support recursive nesting and Turing Complete semantics (Alternative[alt],Optional[opt],Parallel[par],Loop[loop], etc.) compare and contrast:Message Sequence Charts (MSCs). Purpose The purpose of Sequence diagrams is to specify dynamic system behaviors as message-passing co...
mainly focusing on mapping sequence diagram's common structure such as optional structures,alternate structures,parallel structure and loop structure into colored Petri nets.They not only contained structure elements,such as place,transition,input and output arcs,but also contained the logic elements,such...
(activity diagram, ACT)主要关注控制流程,以及输入通过一系列动作转换为输出的过程;序列图(sequence diagram, SD)主要关注模块的组成部分如何通过操作调用和异步信号交互;状态机图(state machine diagram, SMD)主要关注模块的一系列状态,以及响应事件时状态之间的转换.对于特定领域系统建模,SysML允许用户通过扩展机制对元...
net, defining the equivalent conversion rules for converting sequence diagrams of the common operations into a colored Petri net, mainly focusing on mapping sequence diagram's common structure such as optional structures, alternate structures, parallel structure and loop structure into colored Pet...
On the right side of the sequence diagram, we see the commu- nication between the APISProducer and the APISConsumer using asynchronous signals using the publish/subscribe pro- tocol MQTT via MQTTserver. All together the information passes from left to right, and this is repeated in a loop. ...
SysML 序列图(Sequence Diagram) SysML序列图是另一种可以用来说明系统动态行为信息的图。你可以使用叫做生命线的元素,为系统行为中的参与者建模,然后使用生命线之间的消息,为那些参与者之间的交互建模。你可以指定交互的时间约束和持续期间约束。还可以使用各种交互操作符来指引交互的执行。使用交互可以对一系列交互...
If you still prefer to model this in a sequence diagram, here’s the notation to use. Both loop and conditional use interaction frames, which are ways of marking off a piece of a sequence diagram. The sequence diagram example below shows a simple algorithm based on the following pseudocode:...
其中:Lif表示时序图中的对象集;Act表示时序图中的激活元素集; Msg⊆S×R×I表示时序图中的消息集,S⊆Lif 表示消息的发送对象集,T⊆Lif表示消息对象接收者集,I表示消息的唯一标识;Com表示组合片段集,Com={alt,opt,par,loop…}。 定义2(时序图语义):消息的发生位置关系可以定义为:pre={(m,m'),m,m...