Over the past few months, I have been pondering about how to describe Identity in a way that encompasses how we think about ourselves in the "natural world" as well as how we represent ourselves in the "digital world." I asked myself, "How would I describe my own Identity? How would I categorize the many attributes that uniquely describe my own existence? Out of those ponderings have emerged the "Identity Map." I offer an introduction today and will describe the various elements of the Identity Map more completely in days to come.
I welcome any and all comments.
Core Identity. A fundamental premise undergirding the Identity Map is that each person is unique. This unique "Core Identity" can be identified or described by attributes categorized into Names, Characteristics, Relationships, Roles, Location, Experience, Knowledge and Reputation. Each attribute adds to the fundamental uniqueness of each individual. Brief descriptions and examples of each include:
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Names. I am known by many names. My given name is Mark.
My surname is Dixon. My i-name is MarkDixon.My social security number is [wouldn't
you like to know?]. My kids call me Dad.
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Characteristics. I have some measureable characteristics
that don't change - my DNA signature, my fingerprints. Others change over
time - height, weight, hair color. Does IQ change? I don't know.
-
Relationships. I have relationships with people, institutions
and things. I am father to my children, brother to my siblings, husband to
my wife. I am an employee of Sun Microsystems and an alumnus of Brigham Young
University. I own a Nikon camera. I love Chinese food. I can't stand professional
wrestling.
-
Roles. The functions I perform in life are roles: Father,
husband, Sun Identity Practice Lead, Identity blogger, Church volunteer, registered
voter.
-
Location. When I used to travel every week, I'd tell people
I claimed home addresses in Mesa, Arizona and United seat 2B. These are descriptors
of physical locations, relative to different known reference points. However,
my current location (latitude, longitude, elevation) will vary, depending
on where I am physically located at any moment in time.
- Experience. I have experienced many things in the 52+ years
of my earthly existence. I have been stabbed by a pitchfork, run for a touchdown,
flown around the world and milked a cow (many times). Each experience adds
uniqueness to my core identity.
- Knowledge. During my existence, I have amassed much knowledge,
some of it shared by many, some of it unique. Both you and I probably know
the Pythagorean Theorem. You probably don't know the names of my kids. I hope
you don't know my blog password.
- Reputation. Other people and institutions say things about me, some of it good, some of it bad. The credit bureaus say I have a good credit rating. The DMV say I'm a so-so insurance risk because I've had a couple of tickets in the past three years - but they also say I hold a valid drivers license. BYU says I hold a BSEE degree. My wife likes me (and that is what really counts).
Physical Identity refers to tangible items that represent identity attributes. Common physical identity items include birth certificates, drivers licenses, graduations certificates, etc. Each of these symbolically represents one or more attributes from the categories listed above. Creation or destruction of a Physical Identity doesn't alter the core identity attributes it represents. If my drivers license gets trashed, I still exist. For 4 bucks, I can get a new one.
Digital Identity refers to symbolic digital representation of identity attributes. These are normally very small subsets of the entire Identity. Common digitally-represented items include user ID, password, name, address, telephone number. Digital identities can be stored, transferred, used for access system, or stolen (ouch!).
Blended Identity refers to physical items that contain identity attributes. Smart cards or credit cards with magnetic stripes are examples of physical identities that contain digital identities.
So, there it is - the Identity Map. I hope this framework proves to be valuable for discussing the various facets of Identity. Stay tuned for more.
Tags: Identity Digital Identity Identity Management Identity Map





Posted by Shekhar Jha on November 11, 2005 at 05:08 AM MST #
What I have been doing lately is classify identity data into credentials, entitlements and attributes.
I know that 'abuses' your model, because you would correctly point out that my credentials and entitlements are also kinds of attribute.
However, it fits neatly with the SAML assertion types (assertions of identity, entitlement and 'other stuff'), which is my not-very-hidden motive for doing it that way.
Some notion of 'time' also seems to me to be indispensable. I think an assertion of identity is an assertion that 'this person in whom I observe some attribute now' is identical with 'the person in whom I observed some attribute previously': so identity data is data which supports your belief in that assertion. That could therefore be appearance, role, credentials, inference from evidence of the person's skills or memories, and so on.
I've made the point elsewhere that 'credentials' are nothing more than evidence that the person presenting the credentials 'is identical with' the person to whom they were granted at some point in the past.
Hope this helps... keep up the good work!
Posted by Robin Wilton on November 11, 2005 at 06:24 AM MST #
Thanks for your comments. I don't think you are abusing the Identity Map model. You are focusing on Digital Identities, which I believe are symbolic representations of core attributes.
Your terms map nicely to the Identity Map. Credentials are "names", entitlements represent "relationships" and attributes represent any other "attributes" in the Core Identity. To assert a Digital Identity is to claim that these credentials, entitlements and attributes do indeed represent a unique individual.
Thanks,
Mark
Posted by Mark Dixon on November 11, 2005 at 07:16 AM MST #
Feel free to censor if I go on repeating myself! ;^)
Posted by Robin Wilton on November 11, 2005 at 07:41 AM MST #
You may be interested in my post describing the Persona Model .
Posted by Radovan Semancik on November 15, 2005 at 10:50 AM MST #
Thanks for your comments and for your links to your website and Person essay.
I agree that physical and digital identities are similar in nature, but I find it useful to discuss a strictly physical symbol (like a paper birth certificate) to set the stage discuss a digital symbol (such as a digital certificate). Methods for distribution, replication, protection and theft can be quite different between physical and digital realms.
Best regards,
Mark
Posted by Mark Dixon on November 15, 2005 at 06:06 PM MST #
Posted by Paul Madsen on November 16, 2005 at 12:34 PM MST #
>> 2) interests... not synonymous with knowledge
Could be categorized under relationships towards people and maybe you add topics here. Should really be added as it is important e.g. concerning personalized advertising...
>> 3) attention...
I do not think this matches experience. It's rather of the same category than interest as I probably won't look at things in which I in which I do not take any interest. Time comes in here too, the time I spend on these things tell you more about my identity than just what I looked at etc.) This might also be labelled "history and timing of actions"?
Kind regards, Matthias
Posted by Matthias Fischer on January 23, 2006 at 07:09 PM MST #
Posted by hayley on June 20, 2006 at 04:26 PM MST #