"The characteristic of a Shared Decision Making (SDM) system relies in the development of a model satisfying the modern medical operation and public communication in order to improve the medical decision making quality. Its design concept takes into the account of various elements of “auxiliary tool creation principle”, “steps for designing SDM auxiliary tools”, “define clinical issues requiring decision making”, “private cloud of SDM platform”, “foundation facility and service”, “platform and service”, “software and service”, “questionnaire design module”, “information security design”, “front-end WebAPP application program (user end)” and clinical execution procedure framework” along with the integration of contents of various aspects in order to satisfy clinical operation requirement. This system integrates the aspects of basic IT environment, mobile applications and security protection for the design of the SDM management platform. Different auxiliary tools (including texts, photos, images, multimedia, various types of files) are transmitted to patients and relatives (computers, smart mobile devices) via QR Code scan links. In addition, after patients and their relatives finish the reading of the auxiliary tools and complete the questionnaires as well as the decision making, the system is able to timely feed back such information to physicians. Physicians can then understand the needs and decisions of patients in order to conduct joint discussion with the healthcare team and to complete the medical decision. "