向后兼容性的概念与变更 和变更管理 的概念紧密相关。
The concept of backward compatibility is closely related to the concepts of change and change management.
这些约束可能是时间上的，也可能是资金、技术、决策、兼容性、管理、人员、过程或者以上所有方面的。
These constraints might be in terms of time, money, technology, decisions, compatibility, regulatory, people, process or all of the above.
版本管理能让你控制变更带来的影响；兼容性将帮助你减轻版本管理带来的负面影响。
Versioning lets you control the effects of changes; compatibility helps you alleviate some of the negative effects of versioning.
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