工具作为服务是SaaS的子集，是可以在云中提供开发工具的思想。

Tools as a service, a subset of SaaS, is the idea that development tools can be offered in the clouds.

youdao

通常，运行时提供DAS的实现，而应用程序开发工具提供对数据图的支持。

In general, the runtime provides the implementations of the DASs, and application development tools provide support for the data graphs.

youdao

多数的开发工具提供了开发人员可以部署应用和测试应用的本地的环境。

Most development tools provide a local environment in which developers can deploy their applications for testing.

youdao