The ITIL concept is centered around IT services as opposed to IT systems. To assist with the implementation of ITIL practices a further book was published providing guidance on implementation (mainly of Service Management): IT departments primarily have been self-contained entities that were focused strictly on running operating systems, mainframes, and min-computers, fixing desktop computers and maintaining other IT equipment, or developing in-house software.
Once the activities required to create these products are identified then it is possible to estimate the effort required for each and then schedule activities into a plan. In April 2001 the CCTA was merged into the Office of Government Commerce (OGC), an office of the UK Treasury. ITIL Training Courses Capacity management - This ensures that business requirements are fully supported by the appropriate IT hardware resources.
Service Level Management is the primary interface with the customer (as opposed to the user, who is serviced by the Service Desk). The concept of "Service" in an IT sense has a distinct operational connotation, but it would be incorrect then to assume that IT Service Management is only about IT operations.
A known error is a condition identified by successful diagnosis of the root cause of a problem, and the subsequent development of a Work-around.