Open lingyanhao opened 5 years ago
Sorry for bumping this thread, I want to ask why a merge node is not required at B1
Hi,
You can add a merge node every time when you merge the branches after a decision. However, sometimes you might not be able to structure the diagram such that you can use a merge node.
However, it is accepted to merge using another type of node (i.e. action
node in this case). For this diagram, branch [high] merges into branch [input>5].
If you want to use a merge node, you need to have two B1 nodes and two B2 nodes, and the diagram will be different. Could you sketch the diagram for that case?
Best regards, Cristina.
This diagram was taken from the textbook. It was explained that this is a correct diagram a branch can join other branches.
My question: why is there no merge node and what are merge nodes used for? In all the other examples, when branches combine, a merge node is always used. Why is the merge node not needed here?