Every data source must have a defined custodian (a business role) responsible for the accuracy, integrity, and security of that data.

每个数据源必须有确定的管理人（业务角色）负责数据的精确性、完整性和安全性。

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The URI is in the mddl.org domain; mddl.org is the organization that maintains the Market Data Definition Language, an XML vocabulary in which custodian is one of many elements.

URI 在 mddl.org 域中；mddl.org 是维护市场数据定义语言（Market Data Definition Language）这一 XML 词汇表的组织， custodian 是该词汇表中众多元素中的一个。

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Overseas employees would have had to ship data over network connections with finite capacity, which could have required an average of two to 10 days to collect an average of 15-20 gigabytes of data per custodian.

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