A coherent collection of services and/or passive structure elements, accompanied by a contract, which is offered as a whole to (internal or external) customers.
This covers both intangible, services-based, or information products that are common in information-intensive organizations, as well as tangible, physical products. “Buying” a product gives the customer the right to use the associated services.
The name of a product is usually the name which is used in the communication with customers, or possibly a more generic noun (e.g., “travel insurance”).