Mariano Nicolas De Maio is a software engineer who graduated from the Argentinian Enterprise University (UADE). He has been working on Java-based projects and open source frameworks for over a decade. He became involved in the jBPM and Drools projects as a community contributor 4 years ago—first as a project architect for a company investigating the feasibility of a few rules and processes, and eventually as a community contributor on several components that are now part of the open source release components of jBPM, such as the jBPM5 JMS connectors for Human task services, the Infinispan implementations of Drools and the jBPM6 persistence scheme, the Form Builder project and its initial migration to UberFire, the jBPM rollback API, and a number of bug fixes for the core components of several other projects. For the last 3 years, he has been teaching and consulting for jBPM and Drools. Currently, he is the CTO at Plugtree (http://www.plugtree.com), a company that provides consultancy and training around the world on Drools, jBPM, and any artificial intelligence concept where they can lend a hand to different companies. Since then, he has provided both private and public training on both Drools and jBPM to a large number of companies all over the world. He lives in Buenos Aires. He is happily married to Tamara and they are raising a beautiful baby daughter, Sofia. In his free time, he likes to work on contributions for the open source projects he is using. He also has a personal blog about jBPM, Drools, and Decision Management (http://marianbuenosayres.wordpress.com). You can find him through the official jBPM IRC channel #jbpm at http://webchat.freenode.net, under the nickname mariano or mariano84. Besides writing this book, he has previously collaborated in the review of several other books, including jBPM5 Developer Guide, Mauricio Salatino and Esteban Aliverti, Packt Publishing, and A Practical Guide to jBPM5: JBoss Business Process Management Framework, Venkataganesh Thoppae.; Mauricio Salatino(a.k.a. Salaboy) has been an active part of the Java and open source software community for more than 9 years. He got heavily involved in the JBoss jBPM and Drools projects as a community contributor 6 years ago. After publishing his first book about jBPM for Packt Publishing, he was recognized as a valuable member of both projects at the JBoss Community Awards 2011. He has participated in international conferences such as Java One, Rules Fest, Jazoon, JudCon, JBoss In Bossa, and RuleML as the main speaker. He is now a Drools and jBPM Senior Software Developer at Red Hat/JBoss, fully dedicated to move these projects forward. He is currently in charge of developing the next generation Business Process Management Suite, along with contributing to the evolution of the Drools and jBPM community projects. He is now based in London. In his free time, he passionately promotes the open source projects he is using, and is very active in the community forums on these projects. He also runs his personal blog (http://salaboy.com) about jBPM, Drools, and artificial intelligence; Esteban Aliverti is an independent IT consultant and software developer with more than 8 years of experience in the field. He is a fervent open source promoter and developer with meaningful contributions to JBoss Drools and jBPM5 frameworks. After he got his software engineering degree in Argentina, he started working with local IT companies fulfilling different roles ranging from web developer to software architect. In 2009, while working for Plugtree, he was introduced to JBoss Drools and jBPM5 projects. Over the next 3 years, he became one of the lead consultants at Plugtree, providing services to its most important clients all around the world. A former Professor of Java and object-oriented programming at Universidad de Mendoza, Argentina, he decided to continue with his passion for education outside the academic field by co-authoring jBPM5 Community Training and Drools 5 Community Training online courses. The urge to transmit his knowledge and experience led him to participate as speaker and co-speaker in several international conferences, such as Java One Brazil, RuleML, October Rule Fest, and various Drools and jBPM summits. In JUDCon 2012 and 2013, he was recognized as a JBoss Community Leader during the JBoss Community Recognition Awards, in acknowledgement of his contributions to Drools framework. Currently located in Germany, he works as an independent Drools/JBPM consultant and developer. During his free time, he enjoys contributing to Drools and jBPM projects and helping other people to embrace these technologies. In addition, he has a personal blog (http://ilesteban.wordpress.com), which he uses to publish his work and discoveries in his journey through the open source world.
