First I would like to thank the authors for submitting their work to the Journal: Future Generation Computer Systems. Titled: Accurately Detecting Sitting Posture Activities in IoT based Assisted Living Environment; In this study, a system for the activity recognition of a subject sitting behind a table is proposed in which the upper body joint positions are sensed by the Kinect sensor.

Overall this is a very interesting proposal, and fascinating to see new ideas being brought up as practical solutions. The paper is easy to read and is well structure. Advised to include the graphical Analysis to present more clarity on the results. Comparative analysis needs to be presented with the existing technique. The system evaluation could be improved by further details as well. Again, I would like to thank authors for their submission to the Journal: Future Generation Computer Systems.