1. A service is a intangible process whereas a product is a tangible output of a process.
2. A service requires some degree of interaction with the customer for it to be a service. While goods are generally produced in a facility separate from the customer.
3. A service is inherently heterogeneous (they vary from day to day and even hour to hour as a function of the attributes of the customer and the servers. While goods can be produced to meet very tight specifications day-in and day out with essentially zero variability.
4. That service as a process are perishable and time dependent, and unlike goods cant be stored. Ex. you cannot come back last week for an air flight or a day on campus.
5. A service is a package of features that affect the 5 senses: supporting facility (location, decoration,layout, architectural appropriateness, supporting equipment), facilitating goods (variety, consistency, quality of the physical good that go with the service; ex. the food items that accompany a meal service), Explicit services (training of service personnel, consistency of service performance, availability and access to the service, and comprehensiveness of the service), Implicit services (attitude of the services, atmosphere, waiting time, status, privacy and security, and convenience)