SYSTEMS DEVELOPMENT ANALYSIS
WHY IS SYSTEM ANALYSIS IMPORTANT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Processes may or may not be exploded, depending on their level of complexity. When a process is not exploded, it is said to be functionally primitive and is called a primitive process. Logic is written to describe these processes and is discussed in detail in Chapter 9.
Detailed explanation-2: -Leveling is done by drawing a series of increasingly detailed diagrams until the desired degree of detail is reached. As shown in the Figure, DFD Leveling is first displaying the targeted system as a single process, and then showing more detail until all processes are functional primitives.
Detailed explanation-3: -Additionally, a context diagram will never show work flows or actors who initiate data flows (but it will show the direction of the flow). Context diagrams are not the same as use case diagrams; they do not show the entire process with actors, etc. They only show the process at hand in its context.
Detailed explanation-4: -The context diagram is also known as the context data flow diagram or level 0 data flow diagram.