High-Level Architecture

CRS-IUA is an extension of CRS-M. CRS-M provides a front end for WebKit-enabled browsers along with configuration and code extensions that provide functionality to further support its display on mobile browsers.

At a high level, CRS-IUA consists of three parts that work together to provide remote communication between server and client:

  1. A server module (Store.Mobile.REST

  2. An Objective-C REST client that communicates between web services and iOS clients

  3. An iOS application that uses both of these components to demonstrate how commerce business logic can be implemented on a mobile client

The following figure illustrates the components within the server and client in CRS-IUA.

This illustration is described in the preceding text. XE "Server and Client Composition"

The use cases and user experience (UX) design of CRS-IUA are largely the same as those for CRS-M. This allows the reuse of much of the backend configuration, for example, the same custom mobile form handlers are used by CRS-IUA to provide the same address and credit card functionality.

The architecture discussion in this document assumes familiarity with concepts related to Apple's iOS, including the Objective-C language.

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