2. An information system has five parts:
• Data,
• People,
• Hardware,
• Software,
• And Telecommunications
3. An information system is only as good as the data
that is being put in it, but if you put bad data in
this can lead to the results being wrong, which is
what you don’t want.
By putting unfinished or incorrect data in means
the results will be unfinished or incorrect, there for
the system will become completely useless to use.
In order for the results to be correct, you need to
put the correct data in.
4. When it comes to who uses it and what for, there are
many types of people who would use it for many
reasons.
The main people to be involved with using it are the
people who are involved in the capture, processing
and the input of the data.
People can affect the quality of the output and the
information system because if the data that is put in
is wrong the system will become useless.
This means that the system is only as good as the
expert it has been collected from
5. The MIS (Management Information System) size will depend
on the size of the company.
Small Companies
• The MIS is and will normally be run on a stand alone PC in the
finance directors office.
Big Companies
• The MIS is normally run on a server this is either shared or
dedicated with Internet access.
6. MIS can be built just by using simple standard
software, all it has to do is be able to handle
any size of data fast and well.
The more expensive the MIS, the less features
it has but the cheaper the MIS, the more
features it has.
The most important thing to remember is
that the software and hardware need to work
well together.
7. Telecommunication tools are the things that
near enough everyone uses:
• Email,
• Phone,
• Internet,
• Etc.
These are so important to running a
successful company
8. The information system has four parts:
• Input,
• Storage,
• Processing,
• Output,
• And Control/Feedback
Loops.
9. When it comes to entering information in to a
information system, there are two parts:
• Detailed Data – Stored and processed and
forms the basis for the rest of the system.
• User – Tells the system what sort of analysis
they want from the system.
10. Storing your data right is important because
the data should be stored professionally with
the highest level detail available.
The IT department or anyone who takes care
of the storage should make sure that they do
regular back ups of the system and of the
stored data.
Everything should also be kept in a different
place just in case of a disaster.
11. Processing is what turns the data into
information.
Processing at its simplest could just be adding up
the prices of all of the things a person could buy
on their weekly shopping list.
Processing at its most complex the computer can
perform the complex calculations for example
making assumptions about missing data.
12. After entering the input data the output data
can be in either a graphical format or a
textual format.
Graphical Output – Information that is
presented as charts, diagrams, graphs or
pictures.
Textual Output – Information that is
presented as characters, numbers, or text.
13. Control or a feedback loop is what happens in
the company as a result of the output from
an information systems.
A example of it is a data feed of actual sales
data to a computerised stock control
system, this could note which products from
suppliers have increasing sales and reorder
these products in order to reduce the
likelihood of being out of stock.
14. Closed System: the user has some choice
about what to report. But they are limited to
predefined output formats, these are easy to
use.
Open System: There is great flexibility on
what to report on and the format in which the
information is output.
