Protocol DRAFT 4
Fourth draft of the QuadraSpace protocol has just been published!
First of all, we’d like to thank all friends that have sent their comments about previous drafts of QuadraSpace: your help has been valuable for improving the protocol, include features you expected and to find pitfalls in the specifications. We have carefully taken into account some considerations about REST approach (thank you Emanuele), and we finally changed QuadraSpace to support all main HTTP methods (GET/POST/PUT/DELETE) but to guarantee access to the backend also for those devices (Java ME CLDC/MIDP in primis) that lack full HTTP client in their standard library. We will give ore details about that in upcoming articles. Finally, each event has a type, that can be “sample” or “heartbeat”. “Sample” is the event as it was originally described (a notification of some data read by a sensor). “heartbeat” is a “still-alive” message sent by the mote to notify that it is fully operative (thank you Dadaista for reminder!).
The first draft was 47 slides long: the new 4th draft nearly doubles that size (84 slides)! QuadraGrowing! 
Find it at:
http://quadraspace.googlegroups.com/web/qs_protocol_DRAFT4.pdf
or browse it on this web site:
