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1. eXecutiVe SuMMarY IT organizations are constantly faced with the challenge to produce high-quality solutions with a lower total cost of ownership (TCO). With the growing recognition that open source software provides quality, stable solutions, migrations of existing enterprise applications to products such as JBoss® Enterprise Application Platform have become increasingly popular. JBoss Enterprise Application Platform provides a holistic solution that includes tools for such business challenges as business process management, enterprise application integration, and service-oriented architectures (SOA), enterprise portals, and data services solutions. Migrating from proprietary technologies to JBoss Enterprise Application Platform offers many other advantages to IT organizations, including cost reduction versus proprietary JEE implementations, scalability, and the ability to extensively customize the server. Other advantages include: • Standards compliance: Not only has JBoss been a strong supporter of open standards, it has been instrumental in driving a lot of the innovation around open standard enterprise Java, including JPA, JSF, EJB, and CDI. Basing your infrastructure on an open implementation of open standards removes a great deal of risk when choosing a platform for the future. • Cost: Given that there are no up-front licensing costs, JBoss delivers lower overall TCO than Oracle WebLogic while providing mission-critical support via a subscription support model. A lack of up-front licensing costs combined with open standards compliance ensures that you are not locked into a single vendor with JBoss and gives you the flexibility to take back ownership of your IT environment. • Flexibility: JBoss pioneered modular Enterprise Java and its second-generation Microcontainer model allows you to deploy and run only what you need, reducing operational overhead and increasing deployment flexibility. JBoss uses the community version of its projects, following a “release early, release often” model that promotes innovation and is most responsive to user requirements. Appropriate versions of open source projects are subsequently integrated and put through a rigorous certification process to produce enterprise-class solutions, including JBoss Enterprise Application Platform. A successful and smooth migration to JBoss requires a strategic level of up-front planning and a proper understanding of the issues and challenges involved in order to minimize migration risks and costs. In this document, we attempt to cover the most important items and provide readers with some of the resources and references necessary to be successful.