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Tutorial

Chapter 9 – Diagram Consistent

2 years ago by Presto BearSystem Analysis and Design

1.What is diagram consistent? -In your design, you must make sure the Use Case diagram, Sequence Diagram, Class Diagram, Object Diagram are consisted together 2.Elements to Be Consisted -All the methods/use cases in these diagrams must be matched in the quantity and name. Any addition… Read More

Chapter 6 – Mapping from Logical ERD to Relational ERD

2 years ago by Presto BearDatabase Analysis and Design

[embeddoc url=”https://prestobear.com/wp-content/uploads/2018/12/Relational_Mapping.pdf” download=”none”]

Chapter 6 – Data Dictionary

3 years ago by Presto BearData Flow Diagram DFD

Sample data dictionary format [embeddoc url=”https://prestobear.com/wp-content/uploads/2018/05/Report_1234567CCC_1C.pdf” download=”none”]

Chapter 4 – DFD Level Diagram Violation Rule

3 years ago by Presto BearData Flow Diagram DFD

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… Read More

Chapter 3 – DFD Level 0 Diagram

3 years ago by Presto BearData Flow Diagram DFD

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… Read More

Chapter 2 – DFD Context Diagram

3 years ago by Presto BearData Flow Diagram DFD

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… Read More

Chapter 1 – What is Data Flow Diagram DFD?

3 years ago by Presto BearData 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… Read More

Chapter 8 – State Machine Diagram

3 years ago by Presto BearSystem Analysis and Design

1.What is the State Machine Diagram? -Each of object in the Class Diagram has an state diagram -The state diagram is the sequence of state to describe on the changing of state of an object. For example, object seat can change from state available to… Read More

Chapter 7 – Activity Diagram

3 years ago by Presto BearSystem Analysis and Design

1.What is the Activity Diagram? -Each of use case in the Use Case Diagram has an activity diagram -The activity diagram is the sequence of actions to complete a use case -The activity diagram is usually visualize as a vertical model. The diagram has start… Read More

Chapter 6 – Object Diagram

3 years ago by Presto BearSystem Analysis and Design

1.What is the Object Diagram? -The object diagram is the diagram consist of objects of classes in the class diagram. Then, the object diagram will visualize on how these objects are interacted with each others in the system. 2.Element of Object Diagram 2.1 Object -The… Read More

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