👉 Maintainability refers to the ability of a software system or application to be understood, maintained and extended by its users. It is an important aspect of software quality and reliability. In other words, it means that a software system or application should be able to be modified, improved upon, and expanded over time without causing significant disruption in use. Maintaining the software system or application means ensuring that it remains functional, reliable, and secure throughout its lifecycle. Maintainable applications can help organizations save costs