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Data, information, knowledge, wisdom. - ✔✔What are the parts of the DIKW?
Input directly received by human or computer (e.g. taste or smell for human and input for a computer). -
✔✔Data (DIKW)
Data transformed in to something useful (e.g. list of numbers processed through statistical analysis). -
✔✔Information (DIKW)
Result of experience gained from using information (e.g. selecting proper algebraic laws to solve a
problem). - ✔✔Knowledge (DIKW)
An understanding of why something is or was. Can only come by having knowledge and experience. -
✔✔Wisdom (DIKW)
Collection of data and information used to support management of an organization. - ✔✔Information
System
Relevant, timely, thorough, accurate, and reliable. - ✔✔Characteristics of quality data
Data being used must apply directly to the decision being made (e.g. if information is needed about a
customer's purchase history, in order to better serve the customer's needs, it is relevant to collect data on
prior business transactions with the specific customer). - ✔✔Relevant (Characteristics of quality data)
Data must be efficient and must be provided in a timely manner so that companies can utilize it in their
business (e.g. If a company set their budget for the new fiscal year, they would need access to financial
data from most recent years). - ✔✔Timely (Characteristics of quality data)
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, Data must not have any error or lapses (e.g. Client gives apt number in address so shipping company
knows exactly where to go) - ✔✔Thorough (Characteristics of quality data)
Data must be captured as close to the point of activity as possible (e.g. Making sure customer addresses
are correct before sending out coupons) - ✔✔Accurate (Characteristics of quality data)
Data should reflect stable and consistent data collection processes across collection points and over time,
whether using manual or computer-based systems, or a combination (e.g. All employees track sales with
sales tax). - ✔✔Reliable (Characteristics of quality data)
E. octal and hexidecimal - ✔✔Which of the following pairs of numbering systems use the least number of
digits in machine code?
A. binary and hexidecimal
B. decimal and binary
C. octal and binary
D. decimal and hexidecimal
E. octal and hexidecimal
JavaScript, ASP, JSP, PHP, Perl, Tcl, and Python. - ✔✔Scripting languages used more for automation than
software development
Often used to indicate that the number of tiers a system will be broken down into will vary between
different software development projects. Includes presentation tier, logic tier, and data tier. - ✔✔N-Tier
and its parts
Where user interface for the system is developed (e.g. Employee printing out quarterly report of sales
figures). - ✔✔Presentation tier (N-Tier)
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