Which of these is a valid definition of Reference Data?下面哪个选项对参考数据的定义是正确的?:()?
（A）Data that is fixed and never changes该数据是被固定且永不修改的
（B）Data that is widely accessed and referenced across an organisation被整个企业广泛地访问及引用
（C）Data that provides metadata about other data entities提供关于其它数据实体的元数据
（D）Data that has a common and widely understood data definition有着通用且广泛认知的数据定义
（E）Data used to classify or categorize other data用来分类其它数据 答案解析: 举个例实大家便明白，如地区是一个参考数据，那地区是用来干什么用的是，是把类似产品，会员等实体(或主数据)按地区进行归属划分，也就是说，按地区进行分类，所以选“Data used to classify or categorize other data”
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