Subdocuments are child documents that are linked to parent documents. Subdocuments are not contained within their parent documents in the same way that subfolders are contained within parent folders. Subdocuments are useful for linking related documents in a hierarchy such as CAD assemblies, subassemblies, and parts. Another example is site plans, floor plans, and details. The document- to-subdocument relationships help to indicate where documents are used by other documents and might be interdependent.
To create a subdocument:
Related concepts
Working with comments and discussions
About transferring properties with Office documents
Related tasks
Viewing and editing document properties
Locking and unlocking documents