One primary cause of failures is incomplete, vague, or ambiguous requirements.
失败的一个主要原因是不完整的、含糊的或不明确的需求。
If the stakeholders think that the specified requirements are incomplete, ambiguous, or even contradictory, they can give their comments so that the project team can adjust accordingly.
如果涉众认为指定的需求是不完整的、模糊的甚至自相矛盾的，那么他们给给出他们的评论，这样项目团队可以进行相应的调整。
The same is true when we're exploring ambiguous software requirements to meet ambiguous business needs: the business needs change as we move toward them and our understanding of them increases.
研究不确定的软件需求以满足不确定的业务需求也是如此：业务需求会随着我们接近它们以及对它们的理解加深而变化。
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