You have everything to gain and nothing to lose to set up the appropriate CMRs that match your data model, even if the application code does not explicitly use them.
您已经妥善设置了与您的数据模型相匹配的CMR，即使应用程序代码并没有显式的使用它们。
2
In either case, exploit CMRs associated with a gateway object where possible, and either use get (OO delegation) or get (procedural assembly) as needed to get the data to return.
Times were simpler then -there were none of those pesky CMRs to cause you to think beyond "dependent objects" (clusters of properties that actually represent an object "contained" in the entity).