# Tutorial: Designing a Purchase Order Processing System by Using AquaLogic Integrator

# Getting Started

This chapter describes the steps you need to perform before you start developing the Purchase Order application system.

## Before You Begin

Before you start developing a Purchase Order (PO) Processing System, complete the following steps:

1. Create a new workspace UseCaseNew, as described in Loading the Sample Application.
2. Create a Process Application. In the Workspace Studio menu, click File > New > Other... > WebLogic Integration > Process Application. Enter the following labels for the projects:

1. UseCase
2. UseCaseUtil
3. UseCaseWeb

Select Add WebLogic Integration System and Control Schemas to Utility Project to add the system schemas to Utility > Schemas folder.

For information about creating a Process Application, see
Tutorial: Designing Your First Business Process.

3. Copy files from `ALIntE2EUsecase\UsecaseApp\UseCaseWeb\schemas` into the Process `UseCaseWeb > schemas` folder in your newly created workspace.

Note: | You have downloaded and extracted the sample application to a directory on your computer. Let us refer to this directory as `<TUTORIAL_ROOT>`. You must copy a few artifacts from the downloaded application into the new workspace that you have created. All paths mentioned in the following steps are relative to `<TUTORIAL_ROOT>`.

4. Create a new package called `alint.client` under UseCaseWeb\src in your workspace, and copy the `<TUTORIAL_ROOT>`\ ALIntE2EUsecase\UsecaseApp\UseCaseWeb\src\alint\client`` folder into process UseCaseWeb > src folder.
5. Create a new package called `alint.process.control` under UseCaseWeb\src in your workspace, and copy the contents of `<TUTORIAL_ROOT>`\ALIntE2EUsecase\UsecaseApp\UsecaseWeb\src\alint\process\control folder into that package.
6. Copy `alint.channel` from `<TUTORIAL_ROOT>`\ALIntE2EUsecase\UsecaseApp\UsecaseUtil\src to UsecaseUtil\src folder.
7. Create an ALSB project. Enter the following labels:

1. ServiceAccess (Project name)
2. ServiceAccessConfiguration (ALSB Configuration project)

8. Create the following folders in the ServiceAccess folder:

- Resources
- ProxyServices
- BusinessServices

9. Copy `<TUTORIAL_ROOT>`\ALIntE2EUsecase\UsecaseApp\ServiceAccess\Resources\PurchaseOrderProcessingService.wsdl and PurchaseOrder.xsd into the Resources folder.
10. Copy `<TUTORIAL_ROOT>`\ALIntE2EUsecase\UsecaseApp\ServiceAccess\BusinessServices\SavePOToNewDir.biz into the BusinessServices folder.