上面的两个模式都提高了语义互操作性和数据质量，可保证数据服务的服务水平协议(Service - Level Agreement, SLA)，而且降低了总体拥有成本(TCO)。
Both patterns improve semantic interoperability and data quality, guarantee the service-level agreements (SLAs) of data services, and reduce total cost of ownership (TCO).
SOA借用了网络管理和IT基础设施管理等其他信息技术领域的一些概念，比如策略、服务水平协议和服务质量。
SOA borrows concepts such as Policy, service Level Agreement and Quality of service from other aspects of Information Technology such as network management and managing it infrastructure.
为了保证服务质量，客户还可以要求工作人员编制由认证IT专家的要求，项目建议书，采购规格和服务水平协议。
To assure quality of service, clients can require staffing by certified it Specialists in requests for project proposals, procurement specifications and service level agreements.
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