Defining the Object Model
The code for the auction site’s application tier will evolve as new concepts are introduced, but an initial object model can still be defined as a foundation. A good bit of analysis and design work is needed to go from use cases to an object model, but most of that detail will be skipped for now so that the interesting design decisions can be looked at relative to EJB in later chapters. Even though it’s too early to talk about where EJB fits into the design, some basic architectural goals can still be covered to start firming up what needs to be built.
First of all, the subject of this book makes it a given that the auction site will be built on a multi-tiered J2EE architecture. In a nutshell, this means that all HTML ...
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