Technologies Of The Year - Proficiency Inc.'s Collaboration Gateway - Version 3.5 adds support for assembly constraints, surfacing features and methodology and provides enhanced support for top-down associative design techniques, Industry Week, December 1, 2004

CAD Interoperability: The Collaboration Gateway Explained - tool preserves CAD model features and delivers modifiable, native, parametric models across disparate CAD systems, Kenneth H. Klapproth, Pro/E Community, April 28, 2004 (may require free registration)

State of the Art - Feature-Based Interoperability - a look at interoperability software, including Collaboration Gateway 2.0 and Acc-u-Trans Version 4.1, Joe Greco, CADENCE MCAD Tech News #86 (December 19, 2002)

Interoperability, Part 2 - a survey of third-party tools that supply feature-based translation, from TTI, CADCAM-E, Proficiency, ASPire3D, Theorem Solutions and Trade Technologies France, Joe Greco, DE Online, August 2002

Third Parties Map Their Own Paths Toward Interoperability - a look at three companies offering translation services: TTI, Proficiency and Theorem Solutions, Louise Elliott, DE Online, August 2002