After developing the app, I have started writing a journal paper on it. I'm targeting the Future Generation Computer Systems (IF=1.978) Special Issue on Integration of Cloud Computing and Body Sensor Networks. So far I have written a full draft of the paper with some testing still left to complete. At the moment I have about 9 pages and trying to push for another 3 or 4 pages.
Also, I have been invited by my supervisor to contribute a book chapter for "Security, Privacy and Trust in Cloud Systems". I have submitted a proposal and now working on the writing of the book chapter. I realise I have a long way to go to finish the chapter. Working at fast pace..
Regarding the health-monitoring system, it is now a functional prototype and I will be giving a demo this Friday. The Android app now successfully connects the sensor via Bluetooth and reads the live streaming data. The app also has a user interface and buttons that will allow periodic uploads of the latest streamed data to the Cloud. The web service has been updated to allow user authentication. I've also created a Java application which runs on the Client's computer that will enable either a doctor or a patient to log-in and view ECG data through calls to the web service. At the moment, the security layer hasn't been implemented, and it is sending credentials and data through plain XML. Later on, I will implement a security layer that will incorporate secure data sharing aspects. I have come up with a draft idea of a data sharing protocol which will later be further refined. The protocol will be discussed in detail in the journal.
Much more work ahead...