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假设驱动的遗留系统改造

Published : Apr 13, 2021
NOT ON THE CURRENT EDITION
This blip is not on the current edition of the Radar. If it was on one of the last few editions, it is likely that it is still relevant. If the blip is older, it might no longer be relevant and our assessment might be different today. Unfortunately, we simply don't have the bandwidth to continuously review blips from previous editions of the Radar. Understand more
Apr 2021
Trial ?

我们经常被要求更新、升级或者修正那些原本不是由我们构建的遗留系统。有时,我们需要注意一些技术问题,比如提升性能和可靠性。解决这些问题的常用方法是使用与用户故事卡相同的格式创建“技术故事卡”,但以技术成果而非业务成果作为目标。但是这些技术任务通常很难估计需要的时间,花费的时间比预期的要长,最终也时常会得不到预想的成果。另一种更成功的方法是应用 假设驱动的遗留系统改造 。不同于面向标准的 backlog 工作,在这一方法下,团队提出可度量的预期技术成果,并共同建立一组对问题的假设。然后,团队根据优先级在有限时长内进行迭代试验,来验证或推翻每个假设。由此将产生优化后的工作流程,这一流程不是为了按照计划朝着可预测的结果前进,而是为了减少不确定性。

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