Job-Order Construction Quantification: An Application of Fuzzy Thinking

摘要

In recent times the manufacturing industry has faced the reality of globalcompetition by adopting several concepts. Total Quality Management--largely Edwards Demming's 14 Points of Continuous Improvement--has become one of the core ideas. Differentiation and value chain analysis as defined and demonstrated in Michael Porter's book Competitive Advantage, is another. However, these ideas have met limited success in the construction industry. Facility managers in the civilian arena and base engineers in the military do not have the necessary tools to optimize facility system performance. This is the result of several influencing factors: the instability of the construction industry (as defined by Kashiwagi), the emphasis on sales by marketing, the lack of actual performance data, the existing procurement system structure, and the inability to competitively evaluate potential alternatives. The Performance-Based Evaluation and Procurement system, as developed by Kashiwagi uses 'off the shelf' software and the management of information to address the competitive shortfalls of the construction industry. It promotes perfect competition (meeting the requirements of the Federal Acquisition Regulation), while maximizing system performance. It assesses the 'value added' worth of new technology and quality work. This is