A service is an activity or an economic activity made by a person or a social organization for a consumer directly or by means of a tool, equipment, facility, and media. It is provided to a consumer or an enterprise and is intended to meet the specific needs of the other. Its production may be related to a material product or a material product. Irrelevant is the value added or value added to individuals, goods or services in other economic units and mainly expressed in the form of activities.