According to DrummondReed
, Common Identity Infrastructure is "the third major layer in the evolution of the net. The first layer - the Internet itself - is a "common networking infrastructure", a way of linking any two devices on any two networks so that they could exchange packets with each other. The second layer - the Web - is a "common document infrastructure", a way of linking any two documents on any two websites so they can exchange pointers with each other."
"The third layer is not about machines and packets or documents and websites but people and organizations. That's why it fits so neatly under the rubric of "social protocols". A common identity infrastructure is a way of linking any two people or organizations in any two communities so they can share data with each other."