IT
Service Management or ITSM is the ‘subject’ of ITIL. Before focusing on ITSM, it is important for
us to understand the meaning of Service.
Service: Service is the mean of
delivering value to the customer. It assists in achieving the results that
customer wants. It takes away the associated costs and risks from the customer, i.e.
ownership of the cost and risks is transferred from customer to service
provider**.
Key
characteristics of a service are:
- It
enhances performance of the task it assists in delivering
- It
facilitates achievement of the outcomes desired by the customer
- It
reduces the effect of constraints that exists in service delivery
ITSM
is the discipline responsible for management of IT services and systems. It
includes set of processes and functions that are used to provide these
services. It can be said to be the set of capabilities that an organization has
which provides value to the customers in the form of services.
Let
us consider the following example:
Couple of years back one of the
banking institutions in India outsourced its entire IT infrastructure to one of
the leading IT Service Providers. Charging was based on number of transactions
that the bank performs. Cost of the entire IT infrastructure and its day-to-day
maintenance was to be borne by the service provider.
Service provided by the service provider was ‘IT
infrastructure provisioning’. This
service facilitated the transactional requirements of the bank. The bank did
not own the IT infrastructure or any risk associated with it. Thus, by availing
the service, bank transferred the ownership of both cost and risk to the
service provider.