Using SOA with XML at the Application Level

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ADF Faces Architecture

uUsing Oracle Application Development Framework (ADF) Faces architecture

ØCostly and time-consuming to migrate to a different architecture.

ØEach new incarnation requires rewriting existing applications.

ØNo well defined boundaries or interfaces in these architectures between the middle tier/database and the middle tier/client.

uAvoid this problem by creating system boundaries using well-defined services or APIs to link the different parts together.

ØUsing this approach, any one of the tiers can be swapped out with little or no modification of the others.