Service …definition
Service is an act or performance offered by one party to another . Although the process may be tied to a physical product, the performance is essentially intangible and does not result to any owner ship of any factor of production.
Services are economic activities that create value and provide benefits for customers at specific times, place.
Philip Kotler ---”service is any activity of benefit that one party can offer to another that is essentially intangible and does not result in the ownership of anything. Its production may or may not be tied to a physical products