Exam 8: Analyzing Systems Using Data Dictionaries

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In XML,tags become the metadata.

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Elements on a data flow going into or out from a data store:

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The packed decimal format is commonly used to save space on file layouts and for elements that require a high level of arithmetic to be performed on them.

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The data structure and elements for a data store are commonly used to generate computer source code.

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A derived element must be output from at least one process that it is not input to.

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A data dictionary contains information about a data flow diagram,but not entities or use cases.

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A discrete data element is one that has certain fixed values.

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The data dictionary may be used to create:

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In XML,schemas become the metadata.

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XML is used when users have different computer (systems)and software.

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When a V is used as a formatting character for an element,it indicates where the decimal point should occur,even though the actual decimal point is not included.

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The advantage of using XML to define data is that,in the XML format,data are stored in a pure text format and not dependent on any proprietary software.

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What is a reference work of data about data compiled by systems analysts?

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Brackets [ ] represent repetitive elements.

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XML is a way to define,sort,filter and translate data into a universal data language.

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Parentheses represent an optional element in the data dictionary.

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A derived element is one that:

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One of the rules for analyzing a data dictionary is that elements present on a data flow coming or going to a data store must be contained within the data store.

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A ________ is composed of related elements.

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XML is a way to define,sort,filter,and translate data into a universal data language.

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