Scrum的默认做法是保护Sprint Goal:不应该添加任何危害Sprint Goal的变更。但Scrum并非严格的——范围可以与Product Owner重新协商,真正紧急的变更可以被处理,但需要明确说明权衡。
决策框架
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1. Does the new request threaten the Sprint Goal?
NO → can it wait for the next Sprint? Usually yes → backlog it.
YES → talk to the Product Owner about trade-offs.
2. Is it a genuine emergency (prod down, legal, security)?
YES → the PO may cancel/replace work; something must drop.
3. Make the trade-off visible: pulling X in means Y comes out.
具体例子
Sprint进行到一半时,销售部门想要一份"小的"新报告。Scrum Master帮助团队和Product Owner了解这不是紧急事项,所以它被放在下一个Sprint待办事项的顶部,而不是打破当前的目标。
