A more judicious approach would be to first do top-down, then goal-service modeling, and finally bottom-up legacy analysis of existing assets.

一个比较明智的手段应该是首先按照自顶向下来做，接下来进行目标服务建模，最后是自底向上的现有资产的遗留分析。

The WHO public health approach to scale-up emphasizes simplified and standardized drug regimens, decentralized services and judicious use of personnel and laboratory infrastructure; and

世卫组织采用的加强治疗的公共卫生方式，强调简化并且标准化的药物模式、分散式服务和明智使用人力和实验室基础设施。

Combining those techniques with judicious use of additional indexes is the two-pronged performance-tuning approach that is most likely to get you where you want to go.

结合那些技术，并谨慎使用额外索引是有两手准备的性能调优方案，最有可能实现您的目标的。