The Identity Landscape Onion Diagram

Johannes introduced his new Identity Landscape Diagram for 2008 with concentric circles on his blog and in a session at the IIW today. It was an interesting idea to help understand what kind of role "The User Identity" plays in enterprise systems in different tiers (with in enterprise, with close partners, affiliates, customers and potential customers). Though I am not sure if the concentric circles are the right choice to illustrate this but definitely it's a very nice way to help non-techies understand the landscape.

Since it was mainly from enterprise perspective, I tried to see how I can map it in the non-enterprise world. Here is my version:

I further tried to see if I can represent the same in a different blocks format to make it easy for technologists like us to understand what it is:

Any way I totally agree with him about "it makes it very clear that traditional circles of trust apply in very different business circumstances (close partners) than technologies offering lightweight plug-and-play (user-centric customer identity management), and thus do not compete in any business-relevant fashion."