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Information systems

The presentation is about features and functions of information systems.

victoria kerr

on 24 January 2013

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Transcript of Information systems

By Vickie Kerr Features and functions of
information systems
Inputting information in to a information system has 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. Input storage Output control/
feedback loops Hardware Data Software Telecommunications Software should
Be able to handle data quickly and efficiently, and that it can be easily searched though when needed.
The simplest MIS can be built using run of the mill software.
Most MISs use specialized software
The cheaper the MIS = the less features it has.
The more expensive the MIS = the more features it will have.
The hardware and software need to work well together Outputted information can be displayed in many forms.
The main two forms are:
Graphical (e.g. Charts, graphs)
Textual (e.g. Reports, numbers Results of outputted information from a system
If the information outputted is wrong feedback would be sent back to the people who inputted the data into the system, so that it can be inputted correctly.
Communicate data and knowledge between different information systems
Telecommunication tools such as email, phone and intranet, are essential to the successful running of a organization.
Information output is required in multiple places, telecommunications are the best way to communicate quickly and efficiently between different locations.
The hardware
Should be flexible enough to cope with stress and strain put in to throughout the whole organization.
Should be able to store data in large volumes.
In large organizations the MIS is normally run on a server so that the whole organization can use it, however in smaller companies the system is normally run on a standalone system in the finance directors office. An information system is
Only as good as the data inputted
Poor data will lead to poor results being outputted
Incomplete or inaccurate information means outputted information will be incomplete or inaccurate.
There fore the system becomes useless
For the outputted data to be accurate or complete the source data needs to be of good quality.
Data is generated by all parts of an organization
Data can also be received from outside the organization
Such as sales orders The data should be sorted at the most detailed lever possible.
The IT department should take regular backups of the system and the stored data regularly, this should be kept in a different location in case of disaster. Processing The processing of data is where the information is turned into knowledge. sales sales would want to know what products they are selling and to who they are selling it to. They would also like to know the prices of the products. finance The need to know who needs paying, who owes the company money, how much the company will spend and what the company will spend it on. Marketing They need to know what audience they are planning on selling to and what products sell best to which customer type. personnel They would need to know the employee’s details e.g. address medical records, phone numbers, and next of kin customers Receive order Invoice collect payment Orders Customers Warehouse Ship Books Customers order invalid orders billing information customers name, invoice details order details customer name, customer address payment inquiries Invoice statements customer name, customer address Shipping details books books
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