From: Tobias Weber <towb@...>
Date: 2008-05-27T19:59:17+09:00
Subject: Re: How to model something

In article <002ADDAF-2900-45AE-9627-1E6EA25A20CD@mwilden.com>,
 Mark Wilden <mark@mwilden.com> wrote:

> attribute? I think it's the latter. If you have the person object  
> mediate access to one of its attributes based on another of its  
> attributes, you put the responsibility where it truly lies.

I now distributed the possible states along two dimensions and represent 
one by the persons being observed by two different storage models, one 
offline and one in space.

The observers know a bit about the gender dimension and don't ask 
females their weight.

Of course I left the checks in Person, nevertheless. As the class has to 
do much less now it looks clean despite them.

-- 
  Tobias Weber