Once a product is up and running successfully, it still requires continuous maintenance for it to operate at peak performance levels. Here comes the maintenance and support phase of the product. During this phase, we ensure the product is working properly and smoothly on all platforms. Not only currently but also make sure the product runs smoothly on all versions and upgrades as well. Maintenance and support also call for bug fixes and minor changes requested by the client. Throughout the maintenance phase, designers address issues that are discovered to prevent any hindrance to the expected performance of the software.
The maintenance phase lasts the longest in the project lifecycle. The maintenance phase depends on the life of the software. Many designers release newly designed replacement software programs while previous versions of their software continue to undergo maintenance. As computer systems and the needs of end-users of computer programs continue to change, software developers follow a never-ending cycle of development and maintenance.