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Questions tagged [dfd]

For questions related to Data Flow Diagrams

This is for questions related to Data Flow Diagrams.

Data flow diagrams (DFD) are a pictorial representation of data flow through some kind of information system, focusing on the process aspects of the data flow.

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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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Eclipse plugin\Java Library to create flow diagrams

I need to create flow diagrams based on specific inputs, using java code, what are best ways\plugins to achieve this. something like the above diagram (For sample only it is taken from google images) Also the diagrams should be editable after…
Anuj Priyadarshi
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what is differnece among dfd level 0,1 and 2?

I am working on my documentation of final year project (cardioVascular risk assessment using machine learning model). COuld any one please tell me the difference among dfd level 0, level 1 and level 2. Thanks in advance
Noman marwat
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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…
Kaydarin
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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?
user20297975
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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…
esraa
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Implementing a graph-based SDN network management system as a DFD

Can I use Data Flow Diagram (DFD) to implement an SDN Network Management System? The developed system handles topology modeling and storage (as a Graph in a graph DB), load balancing, security, acquiring traffic statistics, and routing. All these…
Sama
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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?
saumilsdk
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Can you use use read/write on data flow chart?

If I have a front-end application that reads from the API of a backend, then I would have a data flow chart like this, because the data flows from the backend to the frontend: However, when I would like to emphasize that this is a read only API,…
Adam
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Data Flow Diagram (DFD) Question about how to link caching system with the main API

I’m trying to build a DFD diagram but I was confused about caching system which is used to make the data run faster. Is the diagram below in correct order or should I make another link from caching system to the database?
Ahmed Ala
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Correct usage of DFD

I have just started a cybersecurity assignment and this is my first use of DFD. I have started off by attempting to build one according to literature on the web. I just wanted to know if somebody could give feedback on improvements and referring to…
fivestarahk
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System analysis and design course- System Design chapter

Question is here: "Program Design presents your final structure chart. Start with physical data flow diagrams (DFD). Modify your logical DFDs by adding implementation references, human-machine boundary and system-related elements." I have my level 0…
Asima
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How to show tracking in a user flow diagram?

I have made a user flow diagram but just wanted to ask you guys about clarification on displaying "tracking". Let's say these are the requirements User enters a web page to browse products User selects product The selected product is tracked by…
ThomasGXS
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Data Flow Diagrams (DFD) modeling doubts

I have some doubts about what would be the most correct way of modelling some things in DFDs. I have the following requirements for a system for a hospital: "All doctors agendas will available for patients in the website. The patient will be able…
asugomez
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