Tonight I attended a CHISIG presentation by Craig Errey, the managing director of PTGGlobal about their XPDesign &tm; design methodology and framework.

Basically, they have tried to come up with a rigourous and repeatable process for delivering the most usable design from the start. It's a very interesting goal, but unfortunately we didn't get to learning much about it due to the constant arguments from the audience.

PTGGlobal appear to have attempted to apply a scientific methodology, setting theoretical limits on the best achievable outcomes for the design and attempting to get as close as possible to those limits. This appared to offend the more design oriented of the audience who preferred to think of design as unquantifiable.