ISO 15022的本部分描述了数据字段维护相关方的责任 字典（DD）和信息目录（CM）。有一个注册机构（RA），是运营部门 负责维护数据字段字典和消息目录的机构，以及注册 管理小组（RMG）。RMG是RA的管理机构，并监督其绩效。

This part of ISO 15022 describes the responsibilities of the parties involved in the maintenance of the Data Field Dictionary (DD) and the Catalogue of Messages (CM). There is a Registration Authority (RA) which is the operating authority responsible for maintaining the Data Field Dictionary and the Catalogue of Messages, and a Registration Management Group (RMG). The RMG is the governing body of the RA, and monitors its performance.