Universität Bremen TZI Universität Bremen This document discusses types of Instance Information to be used in conjunction with the Semantic Definition Format (SDF) for Data and Interactions of Things (draft-ietf-asdf-sdf) and will ultimately define Representation Formats for them as well as ways to use SDF Models to describe them. // The present revision –07 adds an experimental section on linking // sdfProtocolMap and sdfContext which has been yet another result of // the discussions that happened during and after IETF 124.