The ESPRIT project SAM (Speech Assessment Methods) is primarily concerned with establishing and using, within the European Community, standards for multilingual speech input/output assessment and methodology. Most test procedures for assessing speech synthesis, whether in terms of intelligibility, naturalness, prosodic quality, etc. , are based upon presenting a set of examples to a human subject and eliciting an appropriate response which needs to be recorded, interpreted and scored. As part of the SAM project, a system has been designed to implement and control the procedure with maximum flexibility with regard to methodology. SOAP, which has been developed for a PC workstation, was initially designed for segmental testing, but its versatility allows other test methodologies, and other tests, to be automatically controlled. Keywords: Assessment, synthesis, multilingual.