Semantic matchmaking & mediation for sensors on the sensor web

With myriads sensors out there, the manual matching of their characteristics and constraints is not feasible anymore and requires a detailed understanding of sensor metadata and observed properties. Thus, Plug & Play-like approaches that ease the matching of sensors to Web services have become popular in Sensor Web Enablement research. Simple matching, however, tends to exclude too many potentially relevant sensors if not accompanied by mediators as well, e.g., to convert between measurement units. In extending the state of the art, we introduce our current implementation of a rule system that supports complex mediation and mappings, and, thus, aims to achieve a real Plug & Play for the Sensor Web.