Application maintainability is one of the main aspects that a solution architect should consider during architectural design. Every new project starts with lots of planning and resources at the beginning. You may spend a few months creating and launching your application but change frequency will get reduced as your application matures. After the production launch, the application needs several things to be taken care of to keep operating. You need to continually monitor your application to find and resolve any issues on a day-to-day basis.

The operations team needs to handle application infrastructure, security, and any software issues to make sure your application is running reliably without any problems or issues. Often, an enterprise application is complex in nature, with a defined Service Level Agreement (SLA) regarding application availability...