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Implementing Domain-Driven Design by Vaughn Vernon

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Use with Aggregate Design

Such Read Model Projections are frequently used to expose information to various clients (such as desktop and Web user interfaces), but they are also quite useful for sharing information between Bounded Contexts and their Aggregates. Consider the scenario where an Invoice Aggregate needs some Customer information (for example, name, billing address, and tax ID) in order to calculate and prepare a proper Invoice. We can capture this information in an easy-to-consume form via CustomerBillingProjection, which will create and maintain an exclusive instance of CustomerBilling-View. This Read Model is available to the Invoice Aggregate through the Domain Service named IProvideCustomerBillingInformation. Under the covers this ...

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