Also needs to integrate oriented-object, it can provide us class and the object on the application program level, and has produced some preliminary design proposals according to the business example.

面向服务的设计中还需要结合面向对象，为我们提供应用程序层上的类和对象，并根据实例中的具体业务给出了一些初步的设计方案。

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The completion of the so-called System Requirements Review and System Definition Review allows program managers to proceed into the rocket's preliminary design phase, NASA officials said.

MSN: Giant deep-space rocket passes key test - Technology & science - Space - Space.com | NBC News