For example, by combining threshold monitoring with e-mail, they can alert managers and project leaders automatically when a task starts late, slips the due date, breaks the budget, or otherwise diverges from the plan.

• 例如，通过把阀值监控和电子邮件结合起来，在出现一个任务开工晚了，过了预定日期、突破预算或者要不然与计划背道而驰时，它们就能自动提醒经理和项目头头。