What are the principles of data flow and processing as outlined in the attached image?
Understand the Problem
The question appears to be referencing a set of rules or principles related to data flow and processing within data systems. It outlines definitions and limitations for processes, data stores, sources/sinks, and data flows, likely in the context of a Data Flow Diagram (DFD).
Answer
Principles for processes, data stores, sources/sinks, and data flows in DFDs.
The image outlines principles for processes, data stores, sources/sinks, and data flows in data flow diagrams (DFDs), emphasizing correct data movement via processes and labeling conventions.
Answer for screen readers
The image outlines principles for processes, data stores, sources/sinks, and data flows in data flow diagrams (DFDs), emphasizing correct data movement via processes and labeling conventions.
More Information
The image outlines principles such as directing data flows only through processes, ensuring each element is correctly labeled, and illustrating how data should not be moved directly between certain elements without a process.
Tips
A common mistake is not distinguishing between processes and data stores, leading to incorrect data flow assumptions.
Sources
- What is a Data Flow Diagram - Lucidchart - lucidchart.com
- What is DFD(Data Flow Diagram)? - GeeksforGeeks - geeksforgeeks.org
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