Demographics revisited-with PIDS

[jinny m uppal <juppal01@cs.fiu.edu>]

Hello all,
Here are more issues for demographic service.

As of now, many systems store some demographic information. I was
wondering what is the vision for a demographic service, is it one server
with an interface for demographic queries, or is it just a  dmeographic
service specification.

In the Person Demographics paper, the traits listed are name,
addresses etc.. How about traits like, height, weight, color of eyes,
images of fingerprints. How would you classify them. Somebody called
these as medical demographic properties. So are they covered under the
same service as names etc..?

How is PIDS going to be different from Demographics? Is demographic an
extension of PIDS? Or a different service, that will use PIDS like all
other services (COAS etc.) do?

The following is from one of the previous messages from Peter:
(response at the end)

> [view diagram in 16 point courier] 
> > 
> > >      ----------                       -------------     --------- 
> > > 	 | Person | 0..1               m  |  Role     |     |Time   | 
> > > 	 |        |-----------------------|           |-----| Period|
> > >      |________|                       |___________|     |_______|
> > >         |                                 |m
> > >         |                                 |
> > >      ----------------                     |
> > >      | Person       | m                   |
> > >      | property     |----------------------               
> > >   	 |______________| <<context for person property 
> > 
> > Perfecto! This really makes sense to me! 
> > At the same time, isnt one person property going to be provided by
> > one role. Do you have an example where it is really a :many
> > relationship?
> 
> You are right.  I remember thinking about this for quite a while, but
> I can't, for the life of me, remember why i put the "m" at the role
> end of the association.  If I remember, I'll let you know.

I thought of the following example that explains an m:m relatinship:
Consider a person who is a nurse and hence has a nurse-role. She has a
name Jane. When she becomes a patient she still has the same name and
will share the same name object with her other role.However, it is
important to note that the same name with the same time period will be
shared between two roles. I dont know how often this will happen in
practice!
Jinny.

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