They are pretty handy little flash "screens" actually ! It looks like it is
from the Jess In Action book, with some animation.

On 2/24/06, 宋宇彬 <[EMAIL PROTECTED]> wrote:
>
>
> here are three flash demostrate how the rete works,hope they will give u a
> hand to understand how the rete network  work better
>
> http://www.ers.com/Graphics/TheReteNetwork.html
> http://www.ers.com/Graphics/TheReteNetwork2.html
> http://www.ers.com/Graphics/TheReteNetwork3.html
>
> -----邮件原件-----
> 发件人: sol myr [mailto:[EMAIL PROTECTED]
> 发送时间: 2006年2月24日 14:54
> 收件人: [email protected]
> 主题: [drools-user] drools and Rete-oo
>
> Hi,
>
>   The Drools website refers to "Rete-oo", but I'm not sure I understand it
> correctly ... especailly the "Extract Node" (mentioned in the
> documentation).
>
>   Suppose I have a class "Stock" which encapsulates some data
>   (for simplicity, I use only Objects, eg "java.lang.Double" ):
>
>      class Stock{
>             Double  price;
>             Double  expectedProfit;
>             Double  risk;
>      }
>
>   Now, suppose I want to do
>       "assertObject(someStock)"
>   But I was the stock to enter the Rete as a Tuple of length 3  (price,
> profit,  risk) , rather than Tuple of length 1  (just 1 Stock encapsulating
> everything).
>   I understand the 3-tuple approach might give better performance,
> especially if you're about to play around with just one of the attributes (
> e.g. run the same simulation over and over again, each time with just a
> different "risk", while everything else remains fixed).
>
>   Is that what the Extract Node does ?
>   If so, how do you cause it to work - what exactly should you put in the
> < parameter > part of the rule ?
>
>   Thanks very much.
>
>
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