Information Characteristics

In class today we went over Information Characteristics:

Relevance- is how appropriate the information is

Accuracy- is  how correct the information is

Completeness- is if you have all the information

Reliability - is how trustworthy the information is

Timing - is how up-to-date the information is

Level of detail – is the amount of information there is

Presentation - is the way the information is displayed

Availability – how easy it is to access information/ how readily available it is

Value -  how importance the information is to you

 Cost -the price that  information costs

We then moved onto Organisational Information Systems, which are information systems used by organisations. For example, a computerised database used by B&Q to monitor item sales.

Different systems are used at different levels of management

Data Processing Systems

• Used by the Operational Level
• Used generally to process numerical data
• Produce significant amounts of data on a daily basis both input and output
• Critical in day to day functioning of an organisation
• Used for example in supermarket tills

Decision Support System

•  Used at the tactical level of management
• used to retrieve, summarise and analyse data
• this then helps managers to make decisions
• Helps with “what if” analysis

Management Information Systems

• Also used at tactical level
• Uses a large amount of input data e.g. taken from data processing systems
• Helps in decision making or planning
• Draws on internal or external sources of information
• Gives summarised output
• Converts data into information

Exectutive Information System

• Used at the strategic level mangement
• Used to support strategic level decisions
• Summarises data from other information systems
• Drills down to levels below
• Produces summarised information in a graphical format
• Contains the tools to allow forecasting
• Very expensive to set up and maintain due to the level of personal configuration involved.

This is only a summary of the Organisational information system, there are more detailed descriptions in the textbook.

Emma :)

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