Data Essay

This essay has a total of 794 words and 3 pages.

Data

1. Data is something known or assumed. It is anything that fits into a DSS and is
valuable. Three examples are grades for a class, a picture of wallpaper, or word of mouth
about a new product or company. 2. Words, pictures, and numbers. 3. Information is
acquired data that is derived from data and anything that is summarized in numerical or
graphical. Information is used for "informing" some one about something. An example of
information is a net income on a balance sheet, the average of grades for a class and a
graph of how many people use a certain product. 4. Normative approach, subjective approach
and realistic approach. The normative approach is when the DSS provides the information
that a decision maker wants in order to make a particular decision. This states that the
information should meet the guidelines for making the decision. The subjective approach is
when the DSS has information that the designs thought would be useful. This does not mean
that the information will be useful. The last approach, realistic, is when the designer
asks if the decision maker will use this information or not. Each approach has its own
useful data. The realistic approach is the better of all the approaches because it takes
into account what the DSS will be used for and puts in the needed information. The other
two approaches do not put in the information that is needed. 5. The characteristics of
useful information is as follows: Timeliness : information is up to date and still
"useful" Sufficiency : information is able to support the decision Level of detail :
information is meaningful to decision Understandability : information in database and
database are easy to understand Freedom from bias : the designer or user of the DSS are
not bias in the information used or put into the DSS Decision relevance : information
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