It’s hard for most people to grasp important eCTD concepts like lifecycle and granularity until they’ve seen them in action. The best way I’ve found to teach these concepts is by using an eCTD viewer. There are a number of viewers on the market, ranging from free desktop applications to large scale web-based viewers. While I have my favorites, any of them will serve to educate authors, project teams, and Regulatory staff about granularity and document lifecycles. I’m not exaggerating when I say that getting a viewer in front of people is probably the best thing you can do to help your company successfully adopt the eCTD.