In UML,decision node is a control node that accepts tokens on one or two incoming edges and selects one outgoing edge from one or more outgoing flows. Decision nodes were introduced in UML to support conditionals in activities.
Questions tagged [uml-decision-node]
6 questions
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Is there any specific number of output arrows from decision node and input arrows to the merge node in activity diagram?
How many output arrows can be connected to the decision node and how many input arrows can be connected to the merge node in an activity diagram? Is there any possibility of having more than two output arrows to the decision node and input arrows to…
Imasha Rasangee
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UML,merge "decision node" and "merge node"
In UML,is it legal to use merge node at the same time as merge node and decision node?It seems like this:
I think it may help to avoid complex diagrams.If that is not possible,why it is illegal?
hasanghaforian
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Can the input of a decision node be the output of another decision node in UML?
Let's say I have a decision node. I want the output of that decision node to be the input of another decision node, without having to create another action in the middle. Is it possible to do that in UML?
tofana
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Does UML merge node doesn't exit until all flows have arrived at the merge node?
I'm beginner in UML and try understand it. Now I read UML Demystified. There is this sentence:
A merge node doesn't exit until all flows have arrived at the merge
node.
But there is a figure titled as Figure 15.12 Activity node example (where…
hasanghaforian
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UML a diamond as decision and merge node at the same time
For example an application asks password of user in two different unrelated places in a usecase and use the same algorithm for making decision after receiving answer. Can I use this in Activity diagram to show that informations:
Or the merge node…
hasanghaforian
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UML Activity Diagram :loop on decision node
I am learning UML and I would like to know if it is possible to loop on the decision node.
Because in my cockburn I have :
3-Enter with ticket
3a1-Enter with card
3a2-Failure: return to 1
If it is possible, how can I do it with Visual…
Takichiii
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