Serial vs. parallel schema development.
先后方案开发与并行方案开发。
ClearQuest tools to support parallel schema development.
支持并行方案开发的ClearQuest工具。
Parallel schema development, on the other hand, is more complex to work with, but also much more flexible.
另一方面，并行方案开发要更加复杂，但是也更加灵活。
Parallel schema development, on the other hand, is more complex to work with, but also much more flexible.
另一方面，并行方案开发要更加复杂，但是也更加灵活。
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