Queue demonstration in UML activity diagram

4
votes

I am trying to demonstrate data input from UI. When a form is submitted by a user, data goes to MSMQUE, on the other side another application is listening MSMQUE. I thought it would be using signal send, and signal receive notation is an appropriate way to demonstrate the situation. However, I am not sure whether this is true. If the below diagram is wrong, please explain how it should be.

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1
queueumldiagramflowchart
Do you specifically need to present it on activity diagram? Maybe you should consider sequence diagram instead? I don't say it is impossible to present it on ad, just sd seems a better solution, unless you want to put it in some much broader context. – Ister
Actually it could be, however there is no need to create all diagrams for that project. activity diagram is quite enough so that I want to demonstrate in activity diagram. – Tuncaf

1 Answers

3
votes

As @Ister said, a SD would highlight technical aspects better. There is also not a single solution for a queue. Here is one that sprung from my mind

enter image description here

The client just sends something to the queue and continues (it's incomplete). The server has two parallel process parts: one that receives events and queues them and a second that busy waits for something to get in the queue and then asynchronously schedules a task. Analogously a client can wait for async queue tasks or busy wait. There are tons of different ways to implement queues.