Stephen Wilson, Founder, Lockstep Australia
For all the talk of ecosystems, we've actually ignored the ecology of identity. High grade digital identities are ensembles of relationships, business rules and technologies, evolved to fit specific ecological niches. Serious identities tend to resist federation for much the same reason as a salt water fish struggles when dropped into a fresh water tank. To progress, we should drop down a level and federate concrete component attributes instead of high level abstract identities.