Epilogue

Although we have included in this book many chapters dealing with several interesting subjects, we are conscious that there are others that are left out. Topics such as modeling Web-based or XML-based applications are not treated in this book. Future publications need to address these important topics.

At the time this book was published a new modeling paradigm just surfaced in the software engineering world: The Model Driven Architecture (MDA) approach. Few MDA-based tools were available, such Optimal-J of Compuware (http://www.compuware.com/), OlivaNova of Sosylnc (http:// sosyinc.com/), Project Technology, Inc. (http://www.projtech.com), KennedyCarter, Ltd (http://www.kc.com/), Kabira Technologies, Inc. (http://www. kabira.com/), and others.

This new technology looks very promising and it is a UML-based technology. MDA uses UML almost as a programming language. We hope that our book paves the way to the next challenge: The use of the MDA approach to model agricultural systems.

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