Hi All, I'm back from vacation and business trips. One week ago I promoted our group at IEEE IoT workshop. Find attached my slide set. I'd like to draw your attention to slide 4. This is my attempt to cluster and to prioritize different IdM Topics (identifier, mapping, discovery, authentication, authorization, privacy...). I saw a youtube video by Scott Jenson (@Paul thanks for sending the link to the list). Scott sees three layers of complexity in the IoT. - First one is about simple sensors/actuators e.g. measuring the temperature at "central square" - here the challenge is discovery - Second layer is "control" - it's about putting some restrictive elements in front of the sensor - a user needs to authenticate etc. - Third layer is "coordination"-it's about many devices acting together according to certain policies etc. Along these layers I located different sub-topics of our identity discussion. Maybe it's a good way to bring some order and focus to our groups topics. It would be good to match this order with your current IoT projects/experiences and provide feedback. Many greets, Ingo