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+ ------------
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+ Introduction
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+ ------------
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+
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+ <Cargo freighter passing under the Golden Gate bridge in San Fransisco. Image courtesy of {{{http://www.freefoto.com/}FreeFoto.com}}.>
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+
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+[images/frontpage.jpeg]
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+
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+ One of the most requested aids to coming up to speed on DDD has been a
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+ running example application. Starting from a simple set of functions
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+ and a model based on the cargo example used in {{{http://www.domaindrivendesign.org/books/index.html#DDD}Eric Evans' book}},
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+ we have built a running application with which to demonstrate a practical
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+ implementation of the building block patterns as well as illustrate the
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+ impact of aggregates and bounded contexts.
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+
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+ The application can have various uses:
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+
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+ * A how-to example for implementing a typical DDD application
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+
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+ Our sample does not show *the* way to do it, but a decent way.
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+ Eventually, the same design could be reimplemented on various popular platforms,
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+ to give the same assistance to people working on those platforms,
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+ and also help those who must transition between the platforms.
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+
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+ * Support discussion of implementation practices
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+
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+ Variations could show trade-offs of alternative approaches,
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+ helping the community to clarify and refine best practices for building DDD applications.
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+
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+ * Lab mouse for controlled experiments
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+
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+ There's a lot of interest in new tools or frameworks for DDD.
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+
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+ Reimplementing the sample app using a new platform will give a side-by-side comparison
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+ with the "conventional" implementation, which can demonstrate the value of the new platform
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+ and provide validation or other feedback to the developers of the platform.
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+
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peter_backlund
пре 18 година
