How to show "if" condition on a sequence diagram? - Stack …
WEBNov 13, 2011 · I always thought the conditions for the sequence were explicitly described in the scenario and thus no branching took place during the sequence. Alternative paths were handled by describing a variant of the scenario which had its own sequence diagram. It's somewhat subjective so maybe I should post it on Meta or possibly Software Engineering?
Represent sequence diagram from flow of events - Stack Overflow
WEBJan 16, 2022 · This diagram is not bad. It is however somewhat confusing, because: Login is not really a use-case, even if it's a popular practice. This has however no impact on your SD diagram itself. Showing actors in a sequence diagram is not formally correct, even if it's a popular practice.
How to represent an if condition1 else if contion2 on a sequence …
WEBJul 2, 2016 · In the sequence diagram, you can use a combined fragment with an alt operator. This allows you to show alternative behaviors: Graphically, the alternatives are in tiled regions separated by dashed horizotal lines. You can document the precise condition for each alternative in a guard (i.e. [condition]). Example: Additional reading:
Difference between alt and opt fragment in sequence diagram?
WEBFeb 21, 2014 · For example, for an online shop purchase sequence diagram you may use opt to describe how the user can add gift wrapping if she wishes. alt may be used to describe two variants of payment: using credit card or wire money transfer. In the UML specification the meaning is described in section 17.12.15.
UML Sequence diagram auto-numbering in Visual Paradigm
WEBSep 8, 2018 · Iknow how to change the numbering sequence method (I only have manual-auto due to community edition, though). I completely agree with putting PIN Entered inside card is valid but then again this is only a small fragment, that practically means I will continue the rest of the diagram inside that segment of the alt block along with many …
How to represent a call being made in a loop in a sequence …
WEBThe observed class is calling update in the observer every 5 seconds in a loop. I need to show this in the sequence diagram. Is there a way to show it looping indefinitely out of sequence as it were? Or does it not make sense in the context of a sequence diagram; should I not include it? Or should I include it in a different type of diagram?
How to illustrate multiple threads in sequence diagram?
WEBSep 15, 2023 · The UML Sequence diagram approach is to use the "par" fragment to model multiple messages being processed in parallel. Below is a text description which when fed into the PlantUML tool available on the web will produce the diagram below.
It is possible to generate sequence diagram from python code?
WEBJul 21, 2017 · I have about 700 lines of code. I have to write a little doc about this code. In this doc, I plan to have a sequence diagram to explain a bit more. something like this: Since Iam a bit lazy, I would like to know if there is a tool to generate this diagram from code. I don't want to lose my entire weekend doing this.
Is nested alt in sequence diagram a good practice?
WEBDec 30, 2021 · It is difficult to give advice about good and bad practices without objective criteria, and these will depend on the purpose of the diagram: If you use UML for some kind of visual programming , where a comprehensive diagram should show all the details of a specific interaction, nested alt could be a good practice if there is no alternative.
Flowchart or Sequence diagram to describe a process?
WEBOct 12, 2023 · So for your login process example, if you need to describe the sequence of messages between for example a client and a server process and a data base, you should use a sequence diagram. If however you need to describe the system's behavior as experienced by the user and without showing the interactions with other components, …