MST Ch. 5 – Flashcards
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What 3 problems do organizations face when managing data?
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1. Storing the data that are being collected. 2. Collecting the vast amounts of data that are being generated. 3. Processing and analyzing the data that are being stored.
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The term "data rot" refers to
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The deterioration of the medium on which the data are stored.
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Data redundancy refers to:
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Having copies of the same data in multiple locations.
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The management of data across the entire organization is most accurately defined as:
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Data governance.
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A data model is the diagrammatic representation of a database that clearly defines a database's ___ , ____ and ____.
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Entities, attributes, relationships.
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A standardized language used to manipulate data is _____.
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Query-by-example language.
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_____ is a method for analyzing and reducing a relational database to its most streamlined form.
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Normalization
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Operational data that are constantly updated are stored in:
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Databases
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____ is the cumulative store of subjective or experiential learning.
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Tacit knowledge
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_____ is a process that helps organizations identify, select, organize, disseminate, transfer, and apply expertise that is part of the organization's memory and typically resides inside the organization in an unstructured manner.
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Knowledge management
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It is very difficult to manage data for which of the following reasons?
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Data are scattered throughout organizations.
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When customers access a Web site and make purchases, they generate _____.
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clickstream data
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In a relational database, the customer record contains information regarding the customer's last name. The last name is a(n):
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Attribute
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A(n) _____ is a logical grouping of related fields.
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Record
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In a database, the primary key field is used to _____.
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uniquely identify a record
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Data dictionaries perform all of the following functions except:
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Providing information on each record
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A standardized language used to manipulate data is _____.
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structured query language
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_____ is a method for analyzing and reducing a relational database to its most streamlined form.
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Normalization
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The data in a data warehouse have which of the following characteristics?
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They are organized by subject.
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Compared to data warehouses, data marts have which one of the following characteristics?
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Cost less
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Which of the following is an example of explicit knowledge?
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procedural guides
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Explicit knowledge has which of the following characteristics?
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Objective
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The most important benefit of knowledge management systems is:
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they make best practices available to employees.
