has been increasing needs for developing a new question- naire in which more questions associated with external features are included. Recently, KIOM and the Korean Society for SCM have released a web-based diagnosis program based on the new questionnaire, SDQ (Sasangin Diagnosis Ques- tionnaire). This questionnaire was divided into seperate sections for doctors and patients. Furthermore, the ques- tionnaire contained few questions regarding tempera- ment, but more quantitative items, such as the input of the actual measurements of the patient’s body. As a result, SDQ overcame many of the problems asso- ciated with QSCC II. The reliability of SDQ has been established using statistical methods based on clinical data (38). Discussion One of the largest problems associated with CAM is the lack of objectivity in the diagnosis. SCM, which is similar to the other areas of CAM, has a subjective diagnosis process. Therefore, it is difficult for SCM to be accepted by mainstream medicine. To overcome this limitation in SCM, researchers have attempted to develop objective constitution diagnosis tools in many ways. In the early ‘body shape’ and ‘facial’ analyses, research- ers adapted manual measurement to their research, which has been recently applied with automatic measurement to reduce the margin of error in manual measurement. It is eCAM 2009;6(S1) 47 expected that a new product will be released within the next 2–3 years. Regarding voice analysis, even with the advances in voice analysis technology, the vocal factors for constitu- tion diagnosis are not yet clear. If the vocal factors that increase the accuracy in the diagnosis can be identified, it could be possible to easily combine it with other con- stitution diagnosis methods. In the questionnaire research, clinical factors such as external features, temperament and symptoms have been mainly reflected in the questions. And in recent research, more quantitative and objective factors such as body shape and facial features have been included in the questionnaire, so that it evolves to the integrative constitutional diagnosis method that traditional SCM doctors have tried to pursue for a long time. Individual diagnosis tools have shown the possibilities in diagnosing constitution to some degree, but the accuracy of each tool cannot reach the level that is suf- ficient for SCM doctors to utilize it in clinical practice. It is known that the statistical accuracy of individual diagnosis tools, is a little low compared to SCM experts’ diagnosis, for example, 52% in body analysis (10), 58% in voice analysis (39) and unknown in facial analysis. This is because Sasang constitution diagnosis should be done through a combination of information about the body shape, face, voice, character and symptoms by SCM doctors as Lee Je-ma described in his book (1) (Fig. 1). Furthermore, SCM doctors sometimes need Figure 1. The future of Sasang constitution diagnosis combining of the body shape, face, voice and questionnaire.