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Category: Data Flow Diagram DFD

Chapter 6 – Data Dictionary

Posted on 2018-05-25 By Presto Bear No Comments on Chapter 6 – Data Dictionary

Sample data dictionary format

Data Flow Diagram DFD

Chapter 4 – DFD Level Diagram Violation Rule

Posted on 2018-05-25 By Presto Bear No Comments on Chapter 4 – DFD Level Diagram Violation Rule

1. Data source ——- Data source: Wrong 2. Data store ——- Data store: Wrong 3. Data source ——- Data store: Wrong 4. A processing step may have input flows but no output flows. This situation is sometimes called a black hole. 5. A processing step may have output flows but now input flows. This situation…

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Data Flow Diagram DFD

Chapter 3 – DFD Level 0 Diagram

Posted on 2018-05-252018-05-25 By Presto Bear No Comments on Chapter 3 – DFD Level 0 Diagram

1.What is the DFD Level 0 Diagram? -In this diagram, the system will be divided into processes as 1.0 2.0 3.0 4.0 5.0 -In the level 0 diagram, we will visualize the data flow between the data sources, data stores and processes 2.Element of Level 0 Diagram 2.1 Data Source -The data source is visualized…

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Data Flow Diagram DFD

Chapter 2 – DFD Context Diagram

Posted on 2018-05-252018-05-25 By Presto Bear No Comments on Chapter 2 – DFD Context Diagram

1.What is the DFD Context Diagram? -This is the first level of the DFD. -In the context diagram, we just visualize the data flow between the data source and the system (0) 2.Element of DFD Context Diagram 2.1 The System -The system is visualized as rounded rectangle -We have the number 0 denoted on the…

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Data Flow Diagram DFD

Chapter 1 – What is Data Flow Diagram DFD?

Posted on 2018-05-252018-05-25 By Presto Bear No Comments on Chapter 1 – What is Data Flow Diagram DFD?

1.What is Data Flow Diagram DFD? Data flow diagram is the diagram to visualize the flow of data from data source, data store and processes. 2.What are sub levels of Data Flow Diagram? 2.1 Context Diagram -This is the first level of the DFD. -In the context diagram, we just visualize the data flow between…

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Data Flow Diagram DFD

Chapter 5 – Structure English – Decision Tree – Decision Table

Posted on 2017-06-222018-11-27 By Presto Bear No Comments on Chapter 5 – Structure English – Decision Tree – Decision Table
Data Flow Diagram DFD

Chapter 7 – Control Flow Graph (CFG) – Draw Dominant Tree based on Dominant Table

Posted on 2017-06-152018-11-27 By Presto Bear No Comments on Chapter 7 – Control Flow Graph (CFG) – Draw Dominant Tree based on Dominant Table

Problem: In this sample, we will try to draw: 1.Control Flow Graph (CFG) 2.Dominant Table 3.Dominant Tree Sample Answer:

Data Flow Diagram DFD
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