There is a really interesting discussion going on at the LinkedIn Identity Management Specialists group about the top 10 identity attributes.
- First Name
- Last Name
- Date of Birth
- Gender
- Former Last Name (at Birth)
- Location of Birth
- Passport number
- Drivers licence (or state/province) ID number
- Professional or trade registration number
- Bank account number
More Here
Courtesy:http://codetechnology.wordpress.com/2010/05/19/top-10-identity-attributes/