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MST Ch. 5

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

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