Many commentators and analysts are now saying that we are reaching the tipping moment in the adoption of building information modelling. By this they mean that the uphill struggle for implementation is finally falling into place and that it is beginning to gather its own momentum. This is to be welcomed. But the construction industry is very fragmented and how implementation can be accomplished is appearing sluggish. Certain drivers like owners and developers are beginning to have an impact while others like architects and planners remain somewhat listless. How to manage this risk, engender trust and make worthwhile collaboration can be helped with rated 'levels of detail' and calibrated 'metadata'.