The only constant in the technology industry is change.

ITOM and ITSM are both frequently describe management strategies for Information technology, but despite the areas where they overlap, the two acronyms are not quite replaceable.
IT service management refers to all of the activities that an organization performs to manage IT services throughout their entire life span, which includes strategic planning, design, building, service operation, and continual service improvement. The industry-leading set of ITSM best practices known as the ITIL framework it describes the service life cycle in detail, offering a detailed process for effective management at every stage.

IT operations management is also covered under the ITIL framework, so in that case, it can be said that ITOM is a subset of the activities of ITSM. For IT Operations managers and their teams, the focus is on the execution of daily tasks associated with operating the organization’s existing infrastructure components and applications. These tasks are all part of the ‘Service Operation’ stage of the IT service life cycle.

Taking a closer look at the ITIL v3 Service Operation manual, eight processes must be maintained:

To effectively operate a service under the ITIL framework:

• Incident management
• Event management
• Request fulfillment
• Access management
• Facilities management
• Problem management
• IT operations control
• Application management

When we notice the role that IT Operations plays in managing the Service Operation stage of the life cycle. Processes such as incident and event management, problem management, and request fulfillment are managed through the IT service desk, which is filled by the IT Operations team. IT operations control involves the daily maintenance of the IT infrastructure, While facilities management focuses on maintaining the management of the physical environment of data centers, Job descriptions for ITOM professionals. Access management, application management, and technical management could all be covered by ITOM.