There are a number of blogs out there that talk about the EMC products that integrate SharePoint 2010 with Documentum along with the pros and cons of each product. However, I found the task of locating authoritative references to be infinitely more challenging. Because finding official documentation was so difficult, I thought it was worth a blog in hopes my work would save others that effort!
EMC currently offers two products and one services option for SharePoint 2010 and Documentum integration. The products are “EMC My Documentum for Microsoft SharePoint” (MyDSP) and “EMC Documentum Repository Services for Microsoft SharePoint” (EDRSMS). The SharePoint Documentum Framework (SDF) is available as part of an EMC Professional Services engagement.
There is an interoperability overview presentation from Q1 2010 covering the two products that you can view or download: