Decision-making is the study of identifying and choosing alternatives based on the values and preferences of the decision maker. Decision making is also the process of sufficiently reducing uncertainty and doubt about alternatives to allow a reasonable choice to be made from among them. The research methods in this study include naturalistic (unobtrusive) and recording observation and case study.On August 23, 2004, the Legislative Yuan in Taiwan passed landmark constitutional amendment proposals to cut the number of legislative seats from 225 to 113, extend terms to four years from three, adopt a "single-district, two-vote" system, ensure women half of the seats for legislators from the nationwide constituency, give people referendum rights, and abolish the National Assembly. They signify the district legislators shall be elected as the number of districts; nationwide constituency and overseas legislators shall be elected according to the list of nomination of the parties that has garnered more than 5% of the votes, Female legislators shall account for no less than one half of the elected members of each party. ..PAT.-Unpublished Manuscript [ABSTRACT FROM AUTHOR]