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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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See complete tooltip error message for Data Flow SSIS element in Visual Studio

One of the elements in my SSIS data flow diagram shows an error in the tooltip when I hover the cursor over it. Where can I see the full text of this error message? The element that displays this tooltip is the one labeled "Specs". I'm using…
Nelu
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What is the UML analogue to the Data Flow Diagram from Structured Analysis?

Back in the Dark Ages (mid-1980s), I used Data Flow Diagrams from Structured Analysis a fair amount, and found them very useful. My current employer loves UML. I normally use BOUML, which doesn't do non-UML drawings. What is the UML drawing that…
John R. Strohm
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Differences between DFD (Data Flow Diagram) and activity diagram

I need to know this differences in order to undestand how to use them right. Which are the differences of DFD and Activity diagram?
llazzaro
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Is there a way to automatically generate the data flow diagrams and flowcharts?

I am recently working on some long and obscure codes written by some other smart guys. I'm thinking of generating the Data Flow Diagrams and the Flowcharts to facilitate my work. Is there any kinds of software that can do this job…
Zatuch
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asymmetrical distance between groups in alluvial diagram

I would like to chance the distances between groups in an alluvial diagram using ggplot2 and ggalluvial my example is from https://corybrunson.github.io/ggalluvial/articles/ggalluvial.html data(vaccinations) levels(vaccinations$response) <-…
captcoma
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Push/pull visualization in dataflow diagram

I'm trying to visualize a data flow in a diagram where data can flow in one or many directions. Some actors push the data to another actor in the diagram and other actors pull the data. From what I can find, there is no notation of it in uml but I…
Lundahl
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Django: Data Flow Diagrams

Is there any resource where can I get Django's data flow diagrams, I didn't find them on official site? For example of how request is dispatched, how uploaded files handled etc. Sultan
sultan
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Conditional Statement in Data Flow Diagram?

Is it allowed to create a conditional statement in DFD? Is there a need to show validation and conditional statements when making a DFD or its just the flow of data? Like for example, when creating a DFD for a login page in a web-based application,…
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Dataflow Diagram or Pseudo Code for Fast Fourier Transform?

I have an ArrayList that has Double elements. I want to implement FFT(Fast Fourier Transform) on it. However I don't want to take a Java code somewhere else and copy it. How can I find the understandable dataflow diagram or pseudo code of FFT…
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SSIS truncated error returned status 4

I m trying to import file from Excel into an SQL table. When i convert from unicode string[DT_WSTR] to string[DT_STR] with data conversion i get a truncation error on some columns. This is output error: [Data Conversion [2]] Error: Data conversion…
DraganB
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Data flow analysis for C++ program

I need to do some data flow analysis for C++ programs. Any open source tools that anyone can suggest?
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How can I obtain data flow graph along with c-use and p-use variables of a C code?

Is there any online tool/software(open-source preferred) that makes data flow graph of a C code and also gives p-use and c-use variables in it.
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Data Flow Graph Construction

I have been asked to write a program to construct a data flow graph of a input program code, given the abstract syntax tree. I search for the definition of data flow graph online and found there are a lot of things that goes on in data flow analysis…
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How to create data flow diagram for Java source code

I have written an application with approximately 500 classes in java , Now I know this has been asked plenty of times here, but I still couldn't find a proper resource or tutorial for creating a data flow diagram for my entire project. Any…
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Figures with boxes, arrows etc. in Markdown

I am interested in displaying a causal mechanism visually with some plain boxes/circles connected by arrows in my paper written in RMarkdown. Something like this: How is this done in RMarkdown? Would you recommend me to create a picture in a…
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