The Map Creation Wizard guides you through the process of adding a map to your project.
To create a map, do one of the following:
From the main menu bar, select File>New>Map.
In the Orchestration Navigator, right-click to open the shortcut menu and select New>Map.
From the toolbar, select the down arrow at the right of the New Wizard icon, then select Map.
From the
toolbar, click Open New Wizard 
.
When you press Finish in the wizard, the Map Editor opens.
The next step is to use the Map Editor to construct the links and expressions required to transform your input data into the desired format of your output data.
After you have finished your mapping, the next step is to set the context references for each schema in your map.