Exam 3: Data Modeling

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A disadvantage of relational databases is that they cannot accommodate a variety of file inquiries.

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Record keys on computer files are unique only to the extent that they classify computer records by some general category.

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The basic unit of information in an accounting information system database is the debit.

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The correct order of elements, from smallest to largest, in the data hierarchy is database, data field, record, file table).

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All of these are reasons why databases are important to AISs except:

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Database security is no longer important because DBMSs are already so safe.

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A data dictionary:

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The correct order of elements, from smallest to largest, in the data hierarchy is data field, record, file table), database.

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The term "transaction control" refers to the requirement that a database system either process a transaction entirely, or not at all.

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The best choice for the primary key in an "Employees" table would be his or her:

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"Protecting privacy" is one of the important goals in data modelling.

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The _________ helps developers document a database:

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Master files maintained as part of the sales order processing system are:

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In the REA framework, which of these would be recorded as an "event?"

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A relational data structure should never be used for accounting systems.

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The REA accounting framework is most closely associated with which of the following?

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Master files that are maintained as part of the processing of purchase transactions are:

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A database is in first normal form if the data it contains is free of errors and outliers.

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An important reason for normalizing data is to eliminate data redundancy.

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Master files used to plan and report on the resources required for the coming period are:

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