the term "operation" is used only in the field of services and is therefore a narrower concept;

the term "operation" is much broader than the term "production" because the term "operation" includes not only the production of goods but also the provision of services

the term "production" is broader than the term "operations" because it is used when referring to production processes

the term "operation" is an integral part of production management and therefore it is narrower than the term "production"