What is Operation Management?

Operations management refers to the systematic design, direction, and control of processes that transform inputs into services and products for internal, as well as external customers.

It deals with managing those fundamental activities and processes that organizations use to produce goods and services that people use every day. A process is any activity or group of activities that takes one or more inputs, transforms them, and provides one or more outputs for its customers. For organizational purposes, processes tend to be clustered together into operations. An operation is a group of resources performing all or part of one or more processes. Processes can be linked together to form a supply chain, which is the interrelated series of processes within a firm and across different firms that produce a service or product to the satisfaction of customers. 1 A firm can have multiple supply chains, which vary by the product or service provided. Supply chain management is the synchronization of a firm’s processes with those of its suppliers and customers to match the flow of materials, services, and information with customer demand. ( Reid and Sanders, 2013)

Image below shows operations as one of the key functions within an organization

Another definition I got from another source

Operations management (OM) is the business function that plans, organizes, coordinates, and controls the resources needed to produce a company’s goods and services. Operations management is a management function. It involves managing people, equipment, technology, information, and many other resources.

The role of operations management is to transform a company’s inputs into the finished goods or services. Inputs include human resources (such as workers and managers), facilities and processes (such as buildings and equipment), as well as materials, technology, and information. Outputs are the goods and services a company produces. Figure 1-2 shows this transformation process. At a factory the transformation is the physical change of raw materials into products, such as transforming leather and rubber into sneakers, denim into jeans, or plastic into toys. At an airline it is the efficient movement of passengers and their luggage from one location to another. At a hospital it is organizing resources such as doctors, medical procedures, and medications to transform sick people into healthy ones. ( Krajewski et al. 2013)

references : 

Krajewski, Lee J., Riztman, Larry P. and Malhotra, Manoj K. (2013), Operations Management Processes and Supply Chains,10th, Harlow, Pearson.

Reid and Sanders (2013), Operations Management, 5th, Wiley.