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User Guide
The information contained in this section applies to IBM WebSphere Commerce Version 7.0.0.9 and Feautre Pack 8. The documentation also applies to all subsequent releases and modifications until otherwise indicated in new editions.
Developing
The topics in the Developing section describe tasks performed by an application developer.
Controller layer
The Controller layer is the conductor of operations for a request. It controls the transaction scope and manages the session related information for the request. The controller first dispatches to a command and then calls the appropriate view processing logic to render the response.
Integrating with back-end systems and external applications
External systems integration is a key feature of the WebSphere Commerce solution. In WebSphere Commerce business logic is enabled for integration and built-in adapters and interfaces are provided for common integration points. Additionally, the WebSphere Commerce integration solution leverages integration standards by using various IBM connectivity solutions.
Tax integration
You can integrate WebSphere Commerce with a third-party tax calculation system to help build and maintain a highly secure e-commerce site with a worldwide tax calculation process. Use the tax integration feature and its tax integration API to help you integrate with a third-party tax calculation system. The tax integration API are a set of task commands that are called by the order component to communicate with the third-party tax calculation system when the tax integration feature is enabled.
Integrating WebSphere Commerce with Taxware
To build and maintain a highly secure e-commerce site with a worldwide tax calculation process, you can integrate WebSphere Commerce with Taxware, a third-party tax calculation system.
Debugging Taxware-related problems
You can debug Taxware-related issues to determine whether they are WebSphere Commerce exceptions or Taxware problems.

Debugging Taxware-related problems

You can debug Taxware-related issues to determine whether they are WebSphere Commerce exceptions or Taxware problems.

Procedure

Enable the WC_EXTERN tracing to determine if you encounter any exceptions from the WebSphere Commerce side.
Enable WC_ORDER and WC_CALCULATION for more detailed information about any exceptions you encounter from WebSphere Commerce.
If you do not encounter any exceptions from the WebSphere Commerce side, refer to the Taxware web Support Center. Go to https://wsc.taxware.com/ to download file updates and documentation, view Frequently Asked Questions, or open a service call.