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COMMON is the world's largest association of IT professionals, focusing on IBM and related technologies. Since 1960, COMMON have served their users, partners, and the IBM community through leadership, independent education, certification, networking, and their advocacy efforts. In all common events, common regulations, codes, rules, regulations and policies should be strictly observed and enforced. Unless otherwise specified by the speaker, all conferences displayed in public events are open to the media for reporting. Joint members and participants of joint activities should avoid any activities that infringe the intellectual property rights of joint or other organizations or individuals. In addition to the public meeting provision policy or other policies, it is strictly prohibited to use public activities to solicit business.