以前一直在争论项目管理的三约束问题，正在读pmbok2004版，里面有很明确的说明，我以前也理解错了。开卷有益呀！ Project managers often talk of a “triple constraint”—project scope, time and cost—in managing competing project requirements. Project quality is affected by balancing these three factors (Chapters 5 through 7). High quality projects deliver the required product, service or result within scope, on time, and within budget. The relationship among these factors is such that if any one of the three factors changes,at least one other factor is likely to be affected.
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