UML 2 has a very good analogue to a data flow diagram: the "information flow diagram". Information flow diagrams are explained here: https://web.archive.org/web/20121118061853/http://www.uml-diagrams.org/information-flow …

Jan 7, 2017 · Sequence diagrams are appropriate to represent function calls, and you can specify the parameters and returned values as well. Communication Diagrams are also an option and tend to go into more detail with regards to parameters used within function calls. Find the answer to your question by asking. See similar questions with these tags.

Oct 7, 2017 · The main function of the program uses two instances of the TxtFile (called A and B) to read two different files. Then append data of B to A. Then write A to a new txt file.

Jan 7, 2020 · The UML activity diagram models control flow and object flow. Both are very practical to model individual functions, function composition, and function pipelines: Functions would be represented by actions.

Nov 7, 2019 · First of all, you should depict the components with ports (shown as small rectangles, from which the interface lines protrude rather than coming directly from the component itself). Now you have two options. One is to use stereotypes for ports, marking them as <<in>> or <<out>> respectively.

Dec 11, 2024 · Data flow diagrams show what goes in where, where it comes out, and what it does along the way. It’s a good way to illustrate a system at a high level that makes it easy to show the major components and what they are for.

The data-flow diagram is a tool that is part of structured analysis, data modeling and threat modeling. When using UML, the activity diagram typically takes over the role of the data-flow diagram. A special form of data-flow plan is a site-oriented data-flow plan.

Apr 18, 2025 · Data-flow diagrams (DFDs) are essential tools in both UML and SysML for visualizing the flow of information within a system. They provide a clear representation of how data moves between processes, data stores, and external entities, making them invaluable for understanding system functionality.

Make visible the flow of computation through method calls and returns, showing how calls relate to objects, and how calls and returns are paired.

May 23, 2014 · Activity diagram is a perfect choice for data flow behaviors. You can use them to show everything you stated and lots more, especially if you complement acticity diagram with some other UML diagrams. In this case I would recommend class diagram, as these data structures are probably important and should also been specified.