The various stages in the life of an IT service, configuration item, incident, problem, change, etc. The lifecycle defines the categories for status and the status transitions that are permitted. For example:
- The lifecycle of an application includes requirements, design, build, deploy, operate, optimize
- The expanded incident lifecycle includes detection, diagnosis, repair, recovery and restoration
- The lifecycle of a server may include: ordered, received, in a test, live, disposed of, etc.
Line of Service (LOS)
A core service or service package that has multiple service options. A line of service is managed by a service owner, and each service option is designed to support a particular market segment.