Both patterns improve semantic interoperability and data quality, guarantee the service-level agreements (SLAs) of data services, and reduce total cost of ownership (TCO).
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)。
Cost of quality refers to the total cost of all efforts to achieve product or service quality.
质量成本指的是为努力达到产品或服务的质量标准而支付的成本总和。
Then present the new strategic goal: search for the equilibrium point of total cost and service quality.
由此，本文大胆提出了新的战略目标-即寻求总成本(包括时间成本)和服务质量的平衡点。
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