3. Adaptive maintenance

This type of maintenance often occurs as a result of external influences or strategic changes within the company. The system is being adapted to remain up to date.

Example 1

The Government recently changed the VAT rate from 17.5% to 20%. This change meant that many organisations had to make alterations to their systems.

Example 2

A bank decides to offer a new mortgage product. This will have to be included in the system so that mortgage interest and payments can be calculated.

Example 3

An company has introduced a online system for customers to place orders. The online system needs to be integrated into their normal ordering system.