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.