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Jess in Action: Rule-Based Systems in Java by Ernest Friedman-Hill

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Chapter 3. Introducing Jess

In this chapter you’ll...

  • Learn how to obtain and install your copy of Jess
  • Learn how to run Jess programs
  • See how Jess applications are structured

This is a hands-on book. It walks you through the development of several large software systems that use rule-based technology. You’ll see how each system is architected, and you’ll see the detailed implementation of each one. All the example systems use the Jess rule engine. In this chapter, we’ll take a closer look at Jess itself. Jess is an interpreter for the Jess rule language. The syntax of the Jess rule language is similar to that of Lisp, so it might look strange to you at first; but Jess’s language is simple, easy to learn, and well-suited to both defining rules ...

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