Whereas the product structure module aims to capture product information, the goal of this module is to manage documents.
Instead of being attached directly to the parts, the files could be wrapped up in documents in order to follow their own life cycle. Bridges can obviously be built between parts and documents.
Both modules share common features like versioning, metadata management or broadcast notification capability for every event occurring on data (updates, creations, tagging…).
However, the document module has its own functionalities. For example, it is possible to coalesce documents in logical groups. This feature helps bundle documents together to track project deliveries.