FOR IMMEDIATE RELEASE 
Contact: Mary Kroening       
+1-828-350-0350

Amzi! Adds Object-Oriented
Programming with Logic

November 10, 1997 - Lebanon, OH--Amzi! announces the addition of OPL™ (Object-oriented Programming with Logic) to their product line. OPL is a third-party, add-on library written by Erik Borgers for Amzi! Prolog + Logic Server.

OPL combines Prolog with object-oriented techniques to provide a powerful programming environment.. It is a true Object-Oriented Prolog--Prolog and object-orientation without compromises. OPL supports the following paradigms:

• Objects, either Classes or Class Instances.
• Objects (and classes) have attributes, which can be set to any Prolog term.
• Classes have services invoked by message passing.
• Classes can be part of an IS-A hierarchy. Classes inherit attributes and services from one (or multiple) parent classes and can add or redefine properties.
• Object and class behavior can be modified at run time. An object can change it class and a class can even change its place in a hierarchy. Also, the code of object-services can be dynamically changed.

In addition, Prolog's pattern-matching and backtracking mechanisms can be used in combination with these paradigms for matching attributes, backtracking services etc. And OPL can be readily used in embedded Prolog modules (in Java, C/C++, Visual Basic, Delphi, Web Servers, etc).

OPL includes the embeddable Prolog library (PLM file) that implements the OO paradigms, full documentation and a variety of samples.

A demonstration version can be downloaded at no charge from Amzi!’s web site, http://www.amzi.com. This version is limited to 10 objects, but is otherwise fully functional. OPL licenses can be purchased for US$149. Education and quantity discounts are available.

For more information see Amzi!’s web site, http://www.amzi.com, or write or call Amzi! at their new address: 5861 Greentree Road, Lebanon, OH 45036. Phone: 513-425-8050. Fax: 513-425-8025.

Amzi! is a registered trademark and Logic Server and Subscription Plus are trademarks of Amzi! inc.
OPL is a trademark of Erik Borgers.

Amzi! inc.
  47 Redwood Road
  Asheville, NC 28804 U.S.A.
+1-828-350-0350
www.amzi.com