Hi Team,

I am looking for best practices tom construct the XDM for Individual profile with many custom classes which will have additional details about the individual profile. I am trying to understand which approach will be better and on which aspect:

1. Defining custom classes and refer those classes from the Individual profile as shown in Define a Relationship Between Two Schemas Using the Schema Editor | Adobe Experience Platform
2. Embed the custom classes as field groups (as we have homeAddress under Person) within the individual profile 

What aspects should we consider to decide when to choose which option? For example: If I go with a model following Option 1, then can I create a segment rule based on the attributes which belongs to the reference entity? Is there any restriction(s) on these 2 options? 

Thanks in advance.