4. Dynamic information sources

Dictionary definitions tell us that the word 'dynamic' is characterised by continuous change, activity or progress. This is a fairly accurate description in terms of a 'dynamic information source'.

A good example of a dynamic information source would be a web site which is updated on a regular basis. Think about the BBC news web site - it is changed throughout the day as news stories happen around the world. The growth of video phones and satellite technology means that news can be reported on whilst it is still happening.

However, you need to be clear that not all web sites are dynamic information sources, some could be classed as static. Although we are constantly adding new worksheets and pages to this web site, the theory mini-web that you are using right now probably won't be updated again for at least another year. That would class it as a static source of information.

Although many web sites are updated regularly there is nothing to guarantee that the information is correct or unbiased. No one polices the internet and basically anyone with access to web creation software and hosting space can create a web site about anything they like. Unless the content is illegal, then it will stay on the web for anyone to view.


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Dynamic data sources are widely available on smart phones in the form of an 'app'. For example you can get an app to monitor stock prices. It is updated minute by minute.

Another example is real-time traffic updates linked to your Sat-Nav. You subscribe to a traffic monitoring service which then sends the latest information into your navigation system.

People traveling by air can make use of dynamic information sources at airports. They can see a real-time list of all flights which are due to arrive and depart. Delays and cancellations are displayed as soon as information becomes available.