(21) Distinguish between a model and a data model?

QUESTION: Distinguish between a model and a data model?   You must be registered and logged in to an account to download solution   [purchase_link id=”8480″ style=”button” color=”blue” text=”Purchase”]
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(19) Oil companies have functional databases, and the consumer-product industry tends to have product databases. How do financial institutions and the airline industry classify their enterprise database systems? Use Internet sources to find the answer, and record your findings.

QUESTION: Oil companies have functional databases, and the consumer-product industry tends to have product databases. How do financial institutions and the airline industry classify their enterprise database systems? Use Internet sources to find the answer, and record your findings.   You must be registered and logged in to an...
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(15) What is the difference between a database and a database management system?

QUESTION: What is the difference between a database and a database management system?   You must be registered and logged in to an account to download solution   [purchase_link id=”8427″ style=”button” color=”blue” text=”Purchase”]
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(12) Explain why a file-processing system may be referred to as belonging to a two-schema architecture?

QUESTION: Explain why a file-processing system may be referred to as belonging to a two-schema architecture?   You must be registered and logged in to an account to download solution   [purchase_link id=”8415″ style=”button” color=”blue” text=”(PREVIEW ONLY “LIMITED TIME OFFER”)”]
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(11) Describe the structure of the ANSI/SPARC three-schema architecture. Compare this structure with that of the two-schema architecture inherent in a file-processing system?

Question: Describe the structure of the ANSI/SPARC three-schema architecture. Compare this structure with that of the two-schema architecture inherent in a file-processing system?   You must be registered and logged in to an account to download solution   [purchase_link id=”8313″ style=”button” color=”blue” text=”Purchase”]
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(10) Using the Internet, trace the history of ANSI and ISO and their relevance to the information systems discipline. Write a summary of your findings?

QUESTION: Using the Internet, trace the history of ANSI and ISO and their relevance to the information systems discipline. Write a summary of your findings?   You must be registered and logged in to an account to download solution   [purchase_link id=”8296″ style=”button” color=”blue” text=”Purchase”]
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(9) Describe the limitations of file-processing systems. How do database systems make it possible to overcome these limitations?

QUESTION: Describe the limitations of file-processing systems. How do database systems make it possible to overcome these limitations?   You must be registered and logged in to an account to download solution   [purchase_link id=”8235″ style=”button” color=”blue” text=”Purchase”]
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(8) What is data integrity, and what is the significance of a lack of data integrity?

QUESTION: What is data integrity, and what is the significance of a lack of data integrity?   You must be registered and logged in to an account to download solution   [purchase_link id=”8225″ style=”button” color=”blue” text=”(PREVIEW ONLY “LIMITED TIME OFFER”)”]
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(6) What is the difference between a serial collection of data and a sequential collection of data? Which can be used for direct access?

QUESTION: What is the difference between a serial collection of data and a sequential collection of data? Which can be used for direct access?    You must be registered and logged in to an account to download solution   [purchase_link id=”8171″ style=”button” color=”blue” text=”Purchase”]
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(4) Distinguish between sequential access and direct access. Give an example of a type of application for which each is particularly appropriate?

QUESTION: Distinguish between sequential access and direct access. Give an example of a type of application for which each is particularly appropriate?    You must be registered and logged in to an account to download solution   [purchase_link id=”8166″ style=”button” color=”blue” text=”Purchase”]
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