A technical assessment activity has been conducted by Istituto Superiore di Sanità (ISS) in the European project HELLODOC (Healthcare service linking tele-rehabilitation to disabled people and clinicians) for evaluating the tele-rehabilitation service. The activity was mainly focussed on architectural aspects and a step by step monitoring of the service. It was mainly related to the following aspects: service implementation, service performances, service integration and fault management. The technical assessment analysis demonstrated that the service worked in a quite satisfactory way, also considering the pioneering aspect of the project; the set of malfunctioning occurred, which had a low impact on the service continuity, are typical of a post-debug phase.