If you think of the product as a service, then the separate parts make no sense - the point of a product is to offer great experiences to its owner, which means that it offers a service. And that experience, that service, comprises the totality of its parts: The whole is indeed made up of all of the parts. The real value of a product consists of far more than the product's components.
Donald A. NormanIf people keep buying poorly designed products, manufacturers and designers will think they are doing the right thing and continue as usual.
Donald A. NormanRule of thumb: if you think something is clever and sophisticated beware-it is probably self-indulgence.
Donald A. NormanComplexity is acceptable as long as it is intelligible and necessary. We want to avoid needless complications.
Donald A. Norman