For example, relationships such as associations and dependencies may be unresolved. attributes and parameters may have type specifications that cannot be resolved, and so on.
举例来说，关系，例如关联和依赖，可能是未辨别的，属性和参数可能有不能辨别的类型规范，等等。
What are the field specifications of the source data (field name, type, data length)?
源数据的字段规格是什么(字段名、类型、数据长度)？
The modeler can then navigate directly to the parts that play those roles to determine how the service specifications that type those parts might need to change to address the change in requirements.
建模器于是能够直接定位到扮演那些角色的部分，决定代表那些可能需要改变的角色的服务规范如何处理需求中的变化。
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