很少有软件成本模型会考虑测试的实际情况，因此不能够准确地反映测试过程中成本的实际消耗以及当测试情况需要发生改变时对软件成本需求的变化。
Since few software cost models take into account the actual cost of software testing, they can not reflect actual consumption of cost and the needed cost when the testing circumstance changes.
这种情况下不需要完整的软件开发生命周期成本分析，但是如果可能的话应关注此过程中的能力成熟度模型(CMM)。
In this scenario, a full software development lifecycle cost analysis is not required, but you should keep an eye on the capability-maturity models (CMM) of the process if you can.
云模型可以降低用户成本，因为他们无需购买软件和硬件也可以运行—服务提供者已经为用户提供了必要的组件。
The cloud model potentially lowers users' costs because they don't need to buy software and the hardware to run it - the provider of the service has done that already.
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