In the postdeployment stage of the life cycle, you run a deployed solution in a production environment. The operations phase of the life cycle involves the following tasks:
Monitoring. Includes regular monitoring of system performance and system functions.
Maintenance. Includes everyday administrative functions such as adding new end users to a system, changing passwords, adding new administrative users, changing access privileges, performing regular backups, and so forth.
Performance tuning. Includes the use of regular monitoring information to find bottlenecks in system operations and attempting to eliminate those bottlenecks by changing configuration properties, adding capacity, and so forth.
System enhancements and upgrades. Includes adding new Java ES components to a system to add new functionality or to replace non-Java ES components. These changes might require a redesign of the system, beginning with the initial phases of the solution life cycle. Upgrade tasks are more limited, usually amounting to upgrades of Java ES components.