Todd,

What challenges me in what you say about your Data-driven Personas is best
answered by Chapman and Milham see:-
http://cnchapman.files.wordpress.com/2007/03/chapman-milham-personas-hfes2006-0139-0330.pdf

The key point is "there is essentially no way to generalize from
> a well-specified persona to a population of interest, and thus no way to
> say anything about the users of interest. There is no way to distinguish
> which characteristics of a given persona are indicative of users and which
> are irrelevant


Have a look at the paper and see either if your Data-driven Personas
overcome the challenges that they point out.

All the best

James
http://blog.feralabs.com


2008/12/30 Todd Zaki Warfel <li...@toddwarfel.com>

>
> On Dec 30, 2008, at 7:36 AM, James Page wrote:
>
> You run into the challenge with that the Persona are validated by opinion.
>
>
> Actually, if you look at the model I use, it's heavily based on data. So,
> they are created from a combination of qualitative (interview and
> observation) data and often qualitative (survey) data. We build our personas
> off of the data models, which is why we call them Data-driven Personas.
>
> The validation is initially against the data, which they are originally
> based on. We do additional validation by checking with the stakeholders and
> the real people we use. So, it's more than mere opinion.
>
>
> Cheers!
>
> Todd Zaki Warfel
> President, Design Researcher
> Messagefirst | Designing Information. Beautifully.
> ----------------------------------
> *Contact Info*
> Voice: (215) 825-7423Email: t...@messagefirst.com
> AIM: twar...@mac.com
> Blog: http://toddwarfel.com <http://toddwarfel/>
> Twitter: zakiwarfel
> ----------------------------------
> In theory, theory and practice are the same.
> In practice, they are not.
>
>
>
>
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