명쾌한 Identity 정의

최근 User-Centric Identity냐 또는 Domain-Centric Identity, Identity 2.0 등등 여러가지 용어에 대한 이슈들이 많이 있어 왔다. 그런데, 2002년 Ping Identity Corp.의 Andre Durand는 3-tire view of identity에 대해 이렇게 기술하고 있었다.

At the center is tier one: that's your core identity alone. You're in charge of it. Outside that is tier two. This is the identity issued to you by the government, by retailers, by airlines, by insurance companies, by credit-card companies. Every piece of plastic in your wallet is a tier-two identity. Tier three is the cloud of highly presumptuous identity information held by direct marketers and others who hope you may be the one consumer in 50 who responds to a promotional message.