SYSTEMS DEVELOPMENT ANALYSIS
SYSTEMS DEVELOPMENT LIFE CYCLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is a level 1 data flow chart
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It is a level 0 data flow diagram
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It is a level 2 data flow chart
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Its essence builds without pulling
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Nothing
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Detailed explanation-1: -DFD Level 0 is also called a Context Diagram. It’s a basic overview of the whole system or process being analyzed or modeled. It’s designed to be an at-a-glance view, showing the system as a single high-level process, with its relationship to external entities.
Detailed explanation-2: -A context diagram, sometimes called a level 0 data-flow diagram, is drawn in order to define and clarify the boundaries of the software system. It identifies the flows of information between the system and external entities. The entire software system is shown as a single process.
Detailed explanation-3: -A context diagram is a top level (also known as “Level 0") data flow diagram. It only contains one process node ("Process 0") that generalizes the function of the entire system in relationship to external entities.
Detailed explanation-4: -1-level DFD: In 1-level DFD, the context diagram is decomposed into multiple bubbles/processes. In this level, we highlight the main functions of the system and breakdown the high-level process of 0-level DFD into subprocesses.
Detailed explanation-5: -My thoughts: A context diagram only has 1 process, while a DFD level 0 can have more. Save this answer. Show activity on this post. The context diagram established context at the system to be developed that is it represents the interaction at the system with various external entities.