This may not be always possible in a large project or during the update of a legacy system.
这在大型专案中或在更新旧系统的过程中并不总是可能实现的。
Legacy is defined as of, relating to, or being a previous or outdated computer system.
遗留定义为属于、与之相关或就是之前的或已经过时的计算机系统的状态。
Second, the use cases help us build a hypothetical architecture of the legacy system.
第二，用例帮助我们构建遗留系统的假设架构。
Hopefully, if the legacy system is a good one, most of your tests will pass.
如果遗留系统是一个好的系统，您的大多数测试还是很有希望通过的。
Users often have a good perspective on the legacy system.
用户经常对遗留系统有很好的观察。
Such an approach provides a viable option for a phased sunsetting of the legacy system.
此方法提供了用于逐步淘汰遗留系统的可行选择。
It's impossible to get rid of legacy system until you make a strong case that the legacy system is on its last leg.
这是不可能的，以摆脱遗留系统，直到你作出强烈的案件遗留系统是在它的最后一站。
Reverse engineering is a process of design recovery, which can use legacy system effectively.
逆向工程是设计恢复的过程，是对遗产系统的有效利用。
Legacy system reengineering is a successful way to resolve the problem of legacy system.
遗留系统再工程为解决遗留系统难题提供了一个新的方向。
The old system has left a mixed legacy.
这个旧系统留下的遗产优缺点参半。
The old system has left a mixed legacy.
这个旧系统留下的遗产优缺点参半。
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