这是一个极端的例子，但在每种情况下，环境因素都会影响交付计划和预算。
This is an extreme example, but in every case, the environmental factors affect delivery schedule and budget.
他也讨论了如何控制普通的挑战，比如定义模糊的需求和环境，并且平衡时间表、预算和质量的需要。
He also discusses how to handle common challenges such as vaguely defined requirements and environments, and the need to balance schedule, budget, and quality.
可能要配置大量的“系统测试”环境，这取决于您的特定需要和预算限制。
A number of "System Test" Environments may be configured, depending on your specific needs and budgetary constraints.
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