![]() Physical DFD is more specific and close to implementation.įollowing are the components of the data flow diagram that are used to represent source, destination, storage and flow of data.Įntities include source and destination of the data. Physical data flow diagram shows how the data flow is actually implemented in the system. Like in a Banking software system, it is used to describe how data is moved from one entity to another. Logical DFD is used in various organizations for the smooth running of system. ![]() It illustrates how data flows in the system. Logical data flow diagram mainly focuses on the system process. Software Engineering Interview Questions.Top 10 System Design Interview Questions and Answers.Top 20 Puzzles Commonly Asked During SDE Interviews.Commonly Asked Data Structure Interview Questions.Top 10 algorithms in Interview Questions. ![]() Top 20 Dynamic Programming Interview Questions.Top 20 Hashing Technique based Interview Questions. ![]() Top 50 Dynamic Programming (DP) Problems.Top 20 Greedy Algorithms Interview Questions.Top 100 DSA Interview Questions Topic-wise. ![]()
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