Chapter 4 Designing the Middle Tiers
Arguably the middle tier and business layers are some of the more difficult layers to clearly define. Somewhere between the persistence and presentation layers are one or more layers that provide a continuum of cleanly separated yet reusable functionality, which is the goal, right? This is the nirvana that architects search for within their organization or domain. Unfortunately, nirvana is way beyond the scope of this book, and probably beyond the reach of many organizations. This chapter can help you to begin that search by outlining some of the options that are available for your application. It also talks about the specifics of deploying middle layers and dependent libraries within WebSphere Application ...
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