Virtualization completely abstracts the hardware to the point where software stacks can be deployed and redeployed without being tied to a specific physical server.

虚拟化对硬件进行了最大程度的抽象，甚至不需要将软件堆栈绑定到特定的物理服务器就可以执行部署和重新部署。

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Forward engineering is a traditional process of moving high-level abstracts and logical, implementation-independent designs to the physical implementation of a system.

正向工程是对一个系统物理结构实现的高层抽象性、逻辑性及独立性设计的传统处理过程。

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Microsoft abstracts the physical architecture and USES load balancing and connection routing to provide failover and scalability when access the data.

微软对物理架构进行了抽象，并使用了负载均衡和连接路由，从而在访问数据库的时候提供灾难恢复和可伸缩性。

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