An intranet application cannot be reached via the Internet, therefore they are more secure. An extranet application is based on the Internet: therefore they are more convenient and possibly more powerful.
The key advantages of applications such as this are revealed below.
One central location for all contacts: the latest and most up-to-date information is accessible to all.
My extranet applications can boast a powerful calendar system, prompting people with text messages for important items.
Shared files can be made easily available to all. This is a particularly good way of sourcing files, as it will always be the latest version.
With measures in place to ensure only one person can update information at any one time, users will always be looking at the latest and most-accurate information available. This can be critical in preventing disorganisaton or upset customers due to poor communication.
