2. Starting off

One way to upgrade or install new software is to simply purchase the package on a whim, then go ahead and hope for the best.

This may be fine for your own personal computer at home. But you need a far more disciplined and professional approach for a company IT system.

There are a number of methodologies for handling change within an IT system.

One of those is the 'System Life Cycle'. This approach has a number of well defined steps.

The decision about upgrading or installing new software is done at the 'analysis' phase of the method.