Dear Mr. Forgy,
I reviewed the PST Web site, but could find no reference to pricing
or evaluations for the OPSJ product. I would like to get information
on both. Would you please refer me to the appropriate person?
Walter Lambert
At 07:41 PM 10/3/98 -0400, you wrote:
>Since there has been some general discussion of alternatives
>to JESS for this NMS application, I would like to suggest
>another alternative: OPSJ. OPSJ is a Java-based rule system,
>but it is quite different from JESS. OPSJ is designed primarily
>for building rule-based components. For this reason, we have
>tried to eliminate the "mismatch" between proprietary rule
>languages (such as OPS5 or CLIPS) and more conventional languages
>such as Java. In particular, OPSJ operates directly on arbitary
>Java classes; there is no special "fact" type. Also, OPSJ can use
>any Java API directly. No glue code or special declarations are
>required.
>
>OPSJ uses an advanced form of the Rete algorithm known as Rete
>II to give it much better performance than Rete-based tools
>such as CLIPS. Information about OPSJ can be found on the PST
>web site, http://www.pst.com
>
> -- Charles Forgy
>
>
>
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