Describe the naming standard that should be followed for the different levels of a data-flow diagram.
Describe the naming standard that should be followed for the different levels of a data-flow diagram.
Answer
The naming standard for the different levels of a data flow diagram usually follows a hierarachical structure to help clearly identify the different elements of the diagram. The naming standard for each levels is as follows:
1. Context Diagram: The highest level of the data flow diagram is the context diagram, Which shows the overall scope and context of the modeled system. usually named after the systems or process being modeled and is labeled a "context diagram".
2. Level 0 Diagram: A Level 0 diagram is the first level of a data flow diagram and shows the main processes or functions of the modeled system. it is usually named after system or process being modeled and is labeled "Level 0 diagram".
3. Level 1 diagram: A level 1 diagram is the second level of a data flow diagram and provides more detail about the main processes the function identified in the level 0 diagram. Each main process or function is usually named using a verb and noun that describes the process, such as " Process orders 'or ' create message'.
4. Level 2 Diagram: Level 2 diagram provide additional details about the process or function identified in the level 1 diagram. Each Level 2 diagram should be labeled with the name of the level 1 process or function it describes, followed by a unique identifier such as " Process Orders - 1.1 "or" Generate reports - 1.2".
5. Subsequent levels: additional levels can be added to the flow diagram if more detail is required. Each subsequent level should follow the same naming convention as level 2 diagram, with the name of the parent process or function followed by a unique identifier.
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