Corporate Data Warehouse (CDW)
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<p>The Veterans Health Administration (VHA) is increasingly dependent upon data. Most of its employees generate and use vast amounts of data on a daily basis. To improve our capacity for data analysis while providing the most efficient and the highest quality health care to our Veteran patients, VHA, working with the VA Office of Information and Technology, implemented a health data warehouse. Central to this plan is consolidating data from disparate sources into a coherent single logical data model. The Corporate Data Warehouse (CDW) is the physical implementation of this logical data model at the enterprise level for VHA. Although the CDW initially began to store data as early as 2006, a renewed effort began in 2010 to accelerate CDW's content by including more subject areas from Veterans Health Information Systems and Technology Architecture (VistA) and content from other existing national data systems. CDW supports fully developed subject areas in its production environment as well as supporting rapid prototyping by extracting data directly from source systems with very minor data transformations. The Regional Data Warehouses and the Veterans Integrated Service Network (VISN) Data Warehouses share content from CDW and allow for greater reporting flexibility at the local level throughout the VHA organization.</p>
美国退伍军人健康管理局（VHA）日益依赖于数据。其大多数员工在日常工作中生成并使用大量数据。为提升我们的数据分析能力，同时向我们的退伍军人患者提供最高效、最高质量的医疗服务，VHA与信息与技术服务办公室（VA Office of Information and Technology）合作，实施了一个健康数据仓库。该计划的核心在于将来自不同来源的数据整合成一个统一的逻辑数据模型。企业级的数据集成仓库（Corporate Data Warehouse，CDW）是该逻辑数据模型在VHA的物理实现。尽管CDW最早于2006年开始存储数据，但自2010年起，通过包括来自退伍军人健康信息系统和技术架构（VistA）的更多主题领域以及其他现有国家级数据系统的内容，开始了一项新的努力，以加速CDW的内容。CDW在其生产环境中支持完全发展的主题领域，并通过直接从源系统提取数据并实施极小的数据转换，支持快速原型设计。区域数据仓库和退伍军人综合服务网络（Veterans Integrated Service Network，VISN）数据仓库共享CDW的内容，并在VHA组织的地方层面上提供了更大的报告灵活性。
