除了驻留的应用程序之外，公司还可以使用按实际使用量付费模型(SaaS)的协作工具。
In addition to the hosted applications, companies also have the option of leveraging collaboration tools in a pay-as-you-go model (SaaS).
Web服务的这项技术为业界提供了基于按使用付费模型(相对于传统的收缩薄膜包装方式)进行软件销售的前景。
This technology of web services offers the industry the promise of selling software based on a fee-for-usage model as opposed to the typical shrink-wrapped approach.
我想现在经常可以见到混合的模型，各种模型从自由开源的一个极端到付费闭源的另一个极端。
I think that what we're seeing increasingly is the notion of hybrid models. There is a spectrum of models from one extreme of free open source to the other extreme of everyone-pays closed source.
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