虽然手工测试是软件质量保证中不可或缺的部分，但是在过去它很大部分依赖于工具的指导。
Although manual testing is an important part of software quality assurance efforts, it's largely been overlooked by tool companies in the past.
它甚至提供了一个内建的可保证画 面质量的视频流媒体服务。
On top of that, FlowNet had built-in quality-of-service guarantees for streaming video.
但是在IBM Rational，我们必须懂得，为了真正了解一个产品，你必须在它的生命周期里持续地进行质量保证。
But at IBM Rational, we have come to understand that, to really know a product, you must continually ensure quality throughout its lifecycle.
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