What is meant by an exploded DFD?
It means that more detailed or expanded version of the DFD. 6. Describe a data dictionary, and give examples of how and when it is used. – A data dictionary, or data repository, is a central storehouse of information about the systems data. The analysis uses the data dictionary to collect, document, and organize specific facts about the system. – Examples: Student ID, account balance, Field major, etc. 7. Explain the DFD leveling technique. Leveling is the process of drawing a series of increasingly detailed diagrams, until the desire degree of detailed is reached. 8. What is a balanced DFD? Balancing DFD retains consistency and accuracy between the entire series of diagrams, including input and output data flows, data definition, and process definitions. 9. Describe the steps in creating a decision table. They are: – Place a heading at the top left that names the table. – Enter the conditions under heading, with one condition per line, to represent the customer status and availability
