AND ANSWERS
Information Technology
The technology used in creating, maintaining, and making information
accessible.
IT Professional Roles
Administration and Support
System Administrator
Maintains all aspects of the system including hardware, software, and
programming.
Network Administrator
In charge of all aspects of the computer network
,Database Administrator
Focuses on the design, development, and support of database
management systems (DBMSs).
Security Administrator
Installs, configures, and administers firewall security to protect systems
and proactively work to stop intrusions.
Web Administrator
Installs, configures, maintains, secures, and troubleshoots web severs.
Support IT Professionals
Help desk and training.
Information
Processed data.
,DIKW Hierarchy
Defines the transition of data to information from knowledge to wisdom.
(Data Information Knowledge Wisdom)
Data in DIKW
The input directly received by the user (or computer). It is generally not
usable until it has been converted into a relevant form.
Information in DIKW
Having been inferred from data; one or more processes have been
applied to the data to transform it into a more useful form.
Knowledge in DIKW
Information that has been put to use; information placed into a context.
Refined information such that the user of the knowledge is able to call
forth only relevant portions of information when needed.
, Wisdom in DIKW M M
Provides a social setting to knowledge; an understanding of the "why".
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MCan only come by having both knowledge and experience.
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Information Systems M
A collection of data and information used to support the management
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of an organization. Also refers to the technical components and
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human resources that enable the assembly, storage, and processing of
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data and the delivery of information. This has existed for a lot longer
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than computers.
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Characteristics of Quality Data M M M
Relevance - the data being used must apply directly to the decision
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being made
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Timely - data must be efficient and must be provided in a timely
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manner
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Thorough - the data must be complete
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