Services are defined as

the tangible activities or benefits that an organization provides to satisfy consumers' needs in exchange for money or something else of value.

the human $($nonmechanical$)$ component that is part of the manufacturing process.

the activities provided to complement a tangible good, such as technical support for a computer.

the intangible activities or benefits that an organization provides to satisfy consumers' needs in exchange for money or something else of value.

any activity required for the production of a good that cannot be completed $"$in$-$house" and must be outsourced to another firm.