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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Spontaneous generation/miracle
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Black hole
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Grey hole
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None of the above
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Detailed explanation-1: -A processing step may have input flows but no output flows. This situation is sometimes called a black hole [3]. A processing step may have output flows but now input flows. This situation is sometimes called a miracle.
Detailed explanation-2: -A gray hole is a node that selectively drops and forwards data packets after it advertises itself as having the shortest path to the destination node in response to a route request message from a source node. The proposed mechanism does not apply any cryptographic primitives on the routing messages.
Detailed explanation-3: -A data flow is a path for data to move from one part of the information system to another. A data flow in a DFD represents one or more data items. Produces outputs, but has no input data flow, the process that has no input called a spontaneous generation.
Detailed explanation-4: -A black hole in a DFD is a data store with only inbound flows. A data flow diagram (DFD) is a visual representation of the information flow through a process or system. DFDs help us better understand process or system operation to discover potential problems, improve efficiency, and develop better processes.