The three major business functions are finance, marketing and operations.
Operations deals with the production of a product or service and must manage the inputs to production such as workers, machinery, equipments, labour etc.
Finance manages the assets, monetary functions in a company , such as the building used for production, investments and cash flows related to production.
Marketing generates sales of the product or service, such as finding customers for the company. This department deals with creating revenue for the company, hence this department play’s a very crucial role in overall development of the company.