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Questions tagged [dataflow-diagram]

Data flow diagrams are graphical representations of the flow of information through a system. Use this tag for any questions relating to DFDs, their features and uses, and suitability in different circumstances.

A data flow diagram (DFD) is a graphical representation of the "flow" of data through an information system, modeling its process. A DFD is often used as a first step to create an overview of the system, which can later be elaborated on. They can also be used for the visualization of data processing, as part of a structured design process.

A DFD shows the information that will be input to and output from the system, where the data comes from and goes to, and where the data is to be stored. It does not show information about the timing of the process, or information about whether processes will operate in sequence or in parallel.

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Group alluvia in the R alluvial diagram

In the alluvial package, is it possible to combine those alluvia that have the same source and target nodes? For example the two dark alluvia in the image below, that both go through AB and 3. Edit: Here is an example using the Titanic dataset,…
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Dataflow diagram representing external files

I'm designing a dataflow diagram and I reached a point where I don't know if I have to represent the external files that my application loads at the beggining (it's automatic, there's no entity interaction). I represented it as a data store, am I…
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How to convert a Data Flow Diagram (DFD) to Activity Diagram?

I am trying to learn how to convert a Data Flow Diagram to a Activity Diagram: I understand in DFD: The lines between boxes represent data flows, where in activity diagram the lines between boxes represent transition between activities. I also…
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UML Squence Diagram - visualize validation of data

A method performs successively validation checks with some passed data. If a validation check fails, a exception will be immediately thrown and the method aborted. How can visualize this flow with UML sequence diagrams? Is it possible / allowed to…
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Data flow or flow diagrams visualization libraries

I have an application where I have a collection of objects where each one is representing something and each define how they are connected to other objects in the collection by specifying the destination object id and the port that that object to…
iCode
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Is there a better alternative to Zipkin dependency graph for springboot applications?

I am trying to find out if there exists a tool that can show realtime traffic flow for springboot + springcloud microservices for my architecture. While searching for such tool, I pondered upon Zipkin's dependency graph. Is it good enough? Or are…
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How to add value labels on the flows item of a Alluvial/Sankey plot (on R ggalluvial)?

I'm looking to label the "flow" portion of Alluvial / Sankey chart on R. The stratums (columns) can easily be labelled, but not the flows connecting them. All my attempts on reading the documentations and experimenting were to no avail. In the…
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Can 2 entities use same process in Data Flow Diagram (DFD)?

I'm learning how to design a Data Flow Diagram (DFD) for a system. I have a question that I can't answer myself. Let me give a scenario:- In a system, a Trainer wanted to view his/her own profile information and a Trainee also want to view his/her…
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Visual Paradigm Data Flow Diagrams

Am trying to design a Data Flow Diagram for a system using Visual Paradigm Community Edition on Ubuntu 14.04 but can't seem to find Data Flow Diagram in the list of diagrams, any clue why since according to visual paradigm website, there should be a…
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Difference between Data flow diagram and block diagram

Can anyone explain the difference between Data Flow Diagram and Block Diagram ? I Googled it but didn't get any satisfactory stuff that's why I turned to Stack Overflow. Thanks.
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How to do a Level 0 DFD for a game?

I am creating a data flow diagram for a game that I am creating and I was thinking what a level 0 dfd would look like. So far I have come to the conclusion that the input would be mouse clicks and keyboard input. The process would be the game. But I…
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simulation data flow diagram in Enterprise Architect

I'm using EA 16.1 TRIAL and created it from a pattern that provides an example data flow model. When I started to simulate this, only Process1 works and Simulation Ended is displayed immediately. Is it impossible to simulate the data flow diagram?
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How to represent data flow when the same data is exchanged between entity and process?

I have an ecommerce where users can ask questions on the product and the users who bought it can answer the questions and also vote on the questions like amazon , which means that the system will technically send all answers and votes to the user…
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How can i group arrows/generalize in StarUML?

I want to group the arrows coming out of "Hammadde Dağıtım". How can I merge them? I want to create a view like the picture on top.
ozmen
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Does GLIFFY diagram maker supports DFD?

I am using Gliffy tool integrated with Jira and wanted to design data flow diagram but unable to find one. Is that available?
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