The role of metadata in data management is:元数据在数据管理中的作用是::()?
（A）To display appropriate data on screens and reports在屏幕和报告上显示适当的数据
（B）To group common data concepts要对公共数据概念进行分组
（C）To build a big data solution构建大数据解决方案
（D）To help organisations understand its data, its systems and its workflows帮助组织了解其数据、系统和工作流程
（E）To provide effective decision making提供有效的决策 答案解析: ~P602
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