If method behaviors for property values are the same, the property doesn t belong in resourcetype. By Goeff s test, reftype and refintegrity might belong in resourcetype. Eventually servers may have to branch on refintegrity to determine behavior. Geoff - don t say anything. The current definition says that references have no content.
Body means what s in a message, content means what is on the resource.
Jim W doesn t like content because a CGI script is not content, but rather produces content. Still, we want to include it in what we are talking about. The HTTP spec lets you do content negotiation, so that a resource s state includes several distinct entity bodies. Computational processes complicate things further. So we are trying to say that references have no state that would produce a GET entity body.