TIFKK7Ch08 - Chapter 8 Systems Analysis and Design 8-1...

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Chapter 8 Systems Analysis and Design 8-1 Chapter 8 True-False 1 . The data dictionary is a reference work of data about data. T (p. 267) 2 . Data about data is called metadata. T (p. 267) 3 . The data dictionary can be used as a starting point for creating XML documents. T (p. 268 ) 4 . The data dictionary can serve as a consistent standard for data. T (p. 267) 5 . Automated data dictionaries are useful for only printing summary lists of data. F (p. 267) 6 . A larger collection of project information is called a depository. F (p. 268) 7. A data dictionary contains information about a data flow diagram, but not entities or use cases. F (p. 268) 8 . Data stores are usually the first component of a data dictionary to be defined. F (p. 269) 9 . An internal data flow is one that connects two processes. T (p. 269) 1 0 . Data structures are usually described using a binary notation. F (p. 271) 1 1 . An alias for each element is another name for the data used by different users in different systems. T (p. 275) 1 2 . Brackets [ ] represent repetitive elements. F (p. 271) 1 3 . Parentheses represent an optional element in the data dictionary. T (p. 271) 1 4 . Data structures are those data items within the system that are not meaningful if broken down further. F (p. 272)
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Analyzing Systems Using Data Dictionaries 8-2 1 5 . A default value is one that never changes on a report. F (p. 277) 1 6 . A discrete data element is one that has certain fixed values. T (p. 276) 1 7 . 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 in not included. T (p. 276) 1 8 . All derived elements must be stored on a data store. F (p. 277) 1 9 . Each level of a data flow diagram should use data appropriate for the level. T (p. 279) 2 0 . It is important that data flow names on a child data flow diagram are contained within the parent process data flow. F (p. 280) 2 1 . A starting point for creating data dictionary entries is to identify and categorize system input and output data flow. T (p. 280) 2 2 . The ideal data dictionary is automated, interactive, online, and evolutionary. T (p. 282) 2 3 . To have maximum power, the data dictionary should be entirely independent from other programs. F (p. 282) 2 4 . The data dictionary may be used to generate computer source code. T (p. 283) 2 5 . The data dictionary is the one common source in the organization for answering questions and settling disputes about any aspect of data definition. F (p. 284) 2 6 . 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. T (p. 284) 2 7 . Extensible markup language (XML) is a language that can be used to exchange data between
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TIFKK7Ch08 - Chapter 8 Systems Analysis and Design 8-1...

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