对于包含SOA项目的相关数据的各个系统，规范化数据模型为关键实体、它们的属性和关系提供一致的定义。
A canonical data model provides a consistent definition of key entities, their attributes and relationships across the various systems that hold relevant data for the SOA project.
总之，种种约束限制了关系数据库系统的灵活性，并因此限制了系统用户在数据库内部实现复杂、交互式模型的能力。
Overall, these restrictions limit the flexibility of relational database systems and, thus, the ability of users of such systems to implement complex, interactive models within the database itself.
软件架构师还与业务分析人员一起理解当前系统的数据需求及它们到 IAA 数据模型的关系。
The Software Architect also works with the Business Analyst in understanding the data requirements of the current systems and their relationship to the IAA data model.
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