There are 6 other file types using
the DFM file extension!
.dfm - Delphi Win32 form file
.dfm - Midas ViewPoint display form file
.dfm - C++ Builder 6 form file
.dfm - Digital-FM file
.dfm - Pascal file
.dfm - Autodesk drawing specific settings file
What is dfm file? How to open dfm files?
A Data Flow Diagram (DFD) is also known as a Process Model. Process Modeling is an analysis technique used to capture the flow of inputs through a system (or group of processes) to their resulting output. The model is fairly simple in that there are only four types of symbols – process, dataflow, external entity, data store. An example can be found on page 146 in our textbook. The Gane and Sarson Symbol technique is employed there.
Process Modeling is used to visually represent what a system is doing. It is much easier to look at a picture and understand the essence than to read through verbiage describing the activities. System Analyst after talking with various users will create DFD diagrams and then show them to users to verify that their understanding is correct. The process models can be created to represent an existing system as well as a proposed system.
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