Exam 5: Data and Process Modeling

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  -Among the symbols in the accompanying figure, a _____ is used to represent data that a system stores because one or more processes need to use the data at a later time. -Among the symbols in the accompanying figure, a _____ is used to represent data that a system stores because one or more processes need to use the data at a later time.

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Matching ​Identify the letter of the choice that best matches the phrase or definition. -Can have more than two possible outcomes in addition to multiple conditions

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

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​   -Among the symbols in the accompanying figure, a _____ is a path for data to move from one part of the information system to another. -Among the symbols in the accompanying figure, a _____ is a path for data to move from one part of the information system to another.

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If they make use of the four-model approach, which of the following is a likely outcome?

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Later in the systems design phase, you build a logical model that describes how a system will be constructed.

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When a data flow diagram (DFD) is exploded, the higher-level diagram is called the child diagram, and the lower-level diagram is referred to as the parent diagram.

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In addition to the Gane and Sarson symbol set, another popular symbol set is _____.

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In data and process modeling, a(n) _____ shows what the system must do, regardless of how it will be implemented physically.

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A _____ shows how data acts through an information system but does not show program logic or processing steps.

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A data dictionary specifies a data element's _____, which is the set of values permitted for the data element.

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In a data flow diagram (DFD), processes contain the business logic, also called business rules, which transform the data and produce the required results.

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

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In a data dictionary, some data elements have _____ rules. For example, an employee's salary must be within the range defined for the employee's job classification.

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When data flow diagrams (DFDs) are drawn, which of the following conventions should be followed?

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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 data dictionary usually records and describes a default value, which is the _____.

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In a data dictionary, any name other than the standard data element name is called a(n) _____.

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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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Matching ​Identify the letter of the choice that best matches the phrase or definition. -A set of Data flow diagrams (DFDs) that produces a logical model of the system, but the details within those DFDs are documented separately in a data dictionary, which is the second component of this

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