Exam 5: Data and Process Modeling

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Typical process description tools include _____.

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Data flow diagram entities also are called terminators because they are data origins or final destinations.

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The disadvantage of the four-model approach is that ____.

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In a data flow diagram (DFD),a black hole is a process that has _____.

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On lower-level diagrams with multiple processes,there should not be more than nine process symbols.

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By showing processes as _____,an analyst can create data flow diagrams (DFDs)that show how the system functions but avoid unnecessary detail and clutter.

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A _____ shows a logical structure,with all possible combinations of conditions and resulting actions.

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In a data flow diagram (DFD),the Gane and Sarson symbol for a process is a _____.

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The end product of data and process modeling is a logical model that will support business operations and meet user needs.

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Data stores are shown in a context diagram because data stores are external to the system.

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To draw a context diagram,you start by placing a single process symbol on the top right corner of the page.

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_____ is the process of drawing a series of increasingly detailed data flow diagrams (DFDs),until all functional primitives are identified.

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A decision tree is read from left to right,with the conditions along the various branches and the actions at the far left.

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A _____ is logically impossible in a data flow diagram (DFD)because a process must act on input,shown by an incoming data flow,and produce output,represented by an outgoing data flow.

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Since diagram 0 is a(n)_____ version of process 0,it shows considerably more detail than a context diagram.

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Diagram 0 (the numeral zero,and not the letter O)provides an overview of all the components that interact to form the overall system.

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When a data flow diagram (DFD)is exploded,the higher-level diagram is called the child diagram.

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The iteration structure is the completion of _____.

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Data flow diagram (DFD)entities are also called _____ because they are data origins or final data destinations.

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The symbol for a data flow is a triangle.

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