预测软件生命周期成本、趋势及由软件质量量度得到的业务影响
Predicting application life cycle costs, trends, and business impacts from trends in application quality characteristics
在项目生命周期中，质量确保工具是用来验证代码开发的，变更及资产管理工具是用来跟踪应用程序修改的。
Quality assurance tools and change and asset management tools are also needed to verify code development and track application modifications, respectively, throughout the project lifecycle.
在软件生命周期的早期阶段，关注其质量问题能够显著地提高质量及降低成本，而Rational质量检验关提供了开发阶段的检查点。
Focusing on quality early in your software lifecycle is vital to increasing quality and decreasing costs, and Rational quality gates offer checkpoints along the development phases.
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