uml state machine shallow history
The state machine must remember the most recent state configuration that was active before opening the door in order to restore it after the door is closed again.
То есть, в тех случаях, начальные квазистационарный является обязательным. UML State Machine Diagram. By clicking “Post Your Answer”, you agree to our To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 1.7k time. A shallow History sub-state is used to represent the most recently active sub-state of a Composite State; this pseudo-state does not recurse into this sub-state's active configuration, should one exist. History vertices can have at most one outgoing transition.
A transition coming into the shallow history vertex is equivalent to a transition coming into the most recent active substate of a state. Because the shallow history is not working recursively, only 'Composite state 2' and 'Composite state 3' are becoming active directly. This is the substate that is target of the transition originating from the history pseudostate.
it is said it can be used instead of the initial psuedo-state. I'd like to know whether I have correctly understood the ShallowHistory syntax or not. In UML modeling, a pseudostate is used to combine and direct transitions. В двух последних случаях, состояние истории по умолчанию вводится. UML statecharts address this situation with two kinds of history pseudostates: shallow history and deep In the latter two cases, the default history state … Where did you see this?Thanks for contributing an answer to Stack Overflow! Jump to: navigation, search. This time, after the composite state 'Composite state 1' is entered, event 'E1' is fired and 'E2' is not fired. 1.7k time.
In this case, the default entry rule is applied (see Semantic variation point (default entry rule)).If a transition terminates on an enclosing state and the enclosed regions do not have an initial pseudostate, the interpretation of this situation is a semantic variation point. After event 'E3' is fired, composite state 'Composite state 1' is exited and simple state 'Simple state 5' is entered and becomes active.
Shallow History can only be defined for composite States and, at most one such Pseudostate can be included in a Region of a composite State. 3. A shallow History sub-state is used to represent the most recently active sub-state of a Composite State; this pseudo-state does not recurse into this sub-state… The state machine is considered ill-formed if a shallow history is reached while the containing composite state has never been active before and it has no default transitions. There are two types of History pseudo-state defined in UML: shallow and deep history. Refresh. In some interpretations, this is considered an ill-formed model. The shallow history represents the most recent active state configuration of the containing state (but not recursively). In the latter two cases, the default history state is entered. December 2018. default entry.Note that from the last paragraph, it seems you should ALWAYS have a transition from the I didn't find where it says that you can use H* instead of the initial pseudo-state. UML State Machine ShallowHistory.
The shallow history represents the most recent active state configuration of the containing The symbol of a shallow history is a circle containing a "H". it is said it can be used instead of the initial psuedo-state. Если активный подсосто определяется история представляет собой композиционное состояние, то она протекает с его входом по умолчанию.Заметим , что из последнего пункта, то кажется , что вы всегда должны иметь переход от Я не нашел, где он говорит, что вы можете использовать H * вместо исходного псевдо-состояния. Contents . This leads to the composite state 'Composite state 1' being entered again by its shallow history. In the UML spec.
History. I guess that in that case there would be no way to reset the State1's memory while in this case the transition from State0 always starts from State1.1. ... are reactivated recursively (remember that the shallow history doesn't reactivate the children). В некоторых интерпретациях, это считается плохо сформированной модели.
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deep-history … 1 ... A single outgoing Transition from this Pseudostate may be defined terminating on a substate of the composite State. There are two types of History pseudo-state defined in UML: shallow and deep history. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under
Protocol state machines also cannot have deep or shallow history pseudostates. Then the event 'E3' is fired. The simple states 'Simple state 2' and 'Simple state 4' are entered and become active. When you select the shape or icon representing the element, the documentation you type here also appears in the Lists the transitions you have defined for the composite state.To quickly edit the most commonly used settings for a transition, click a field in the To access all of the settings for a transition, select the transition in the list, and then click Click to add an undefined transition to the list of To quickly edit the most commonly used settings for a transition, click a field in the To access all of the settings for a transition, select the transition in the list, and then click Click to add a new transition to the list with the same property values as the selected transition.Click to delete the selected transition from the list.
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