Closed system is a system that is not related to
external environment. While the open system is
a system-related and affected by the external
environment.
4. Natural systems and artificial systems
Natural system is a system that occurs through
natural processes, not through natural processes.
While the artificial system is a system that
designed by humans,
Data is the description of objects, events,
activities, and transactions that do not have a meaning
or not directly affect the value pemakai.Data can be
formatted, text, image, audio and video (Kadir, 2003).
Formatted data is data with a particular format. For
example, the data stating the date or hour,
ataumenyatakan currency values. The text is a series
of letters, numbers, and symbols in particular (Eg "+"
and "$") that the combination does not depend on
each item individually tesk Examples are newspapers.
Image (image) is the data in the form of images.
The image can be in the form of graphs, photographs,
x-rays, and other ataupungambar signature.
Audio is data in the form of sound. Music
instruments, voices or sounds of animals, splashing
water, heartbeats are some examples of audio data.
Video expressed sejumblah datan in the form of
moving images and bias-equipped with the sound.
Video can be used to capture an event or activity.
Information is data that has been processed so as
to reduce the confusion about the circumstances or an
event. While the data word itself is the fact that the
actual reality.
Information can also be defined as a result of
processing data in a form that is more useful and more
meaningful to the recipient a portrait of an events
(event) real (fact) that is used for decision making.
(Hartono, 1999). Within the scope of information
systems, information has characteristics as described
below: (Davis, Gordon B, 1989)
1. Right or wrong, this can relate to reality or not.
When the recipient of the information is wrong
to believe, the same result as correct.
2. New. Information may be completely new and
fresh for the recipient.
3. Additional. Information can renew or give a new
addition to the information already exists.
4. Corrective. Information data into a corrective on
one of the previous information.
5. Confirmation. Information can reinforce the
already existing information. This is still useful
because it enhances the perception of the
recipient for the correctness of this information
open. One real example is OPEN MOVIE
filmed Blender Institute.
1.1 Information Quality
The quality of the information (quality of
information) depends on three factors, namely
accuracy (accurate), timeliness (timeliness), and
suitability (relevance). (Hartono, 1999)
a. Accuracy
Information should be free from mistakes and not
biased or misleading. Accurate information can be
also be interpreted must clearly reflect the intent.
b. Punctuality
The information that came at the recipient should not
be too late. The information is already using will not
have value because information is the cornerstone of
decision making so that when information is delayed
then the decision becomes incompatible with the state
c. Conformity
Such information has benefits for the wearer.
Suitability for each person is different depending on
the way of view and treat information that has been
acquired.
It is known that the information is very important
for management in decision making. Information can
also be obtained from the system information
(information system) or also called Processing system
or information processing system or information-
generating system.
1.2 Information Systems
The information system can be defined as a system
within an organization that is a combination of
people, facilities, technology, media, procedures and
controls are shown to get the lines of communication
is important, process the transaction type certain
routine, giving a signal to management and the more
of the events of internal and external are important
and provide an information base for decision-making
astute (Hartono, 1999 GIS can present a real world
(real world) on the monitor as sheet maps can
represent the real world on paper. However, SIG has
the power more and flexibility of the sheet of paper.
map is a graphical representation of the real world,
objects are presented on a map called the element of
a map or map features (examples are rivers, parks,
gardens, roads, etc.). Since the map organize based on
those elements of the locations. SIG menyimp an all
elements of descriptive information as attributes in
the database. Then, SIG to form and store it in tables
(relational) thus, these attributes can be accessed
through the locations of the map elements and
instead, the elements of the map can also be accessed
melaluiatribut-attribute. (Prahasta Eddy 2005).