我所了解到的谈论得比较少（即使也同等重要）的是现有应用程序利用新服务的能力。

What I see discussed much less often, even though it is equally important, is the ability for existing applications to leverage new services.

youdao

很多时候，问题是SOA努力过于自底向上了，其中架构师基于现有能力指定服务。

Frequently, the issue is that the SOA effort is excessively bottom-up, where architects specify Services based upon existing capabilities.

youdao

热更新：在不必关闭系统的情况下对现有Web服务进行更改的能力。

Hot update: the ability of making changes to an existing web service without shutting down the system.

youdao