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title: "Workflow: Create a Mapping through the Design Center UI"
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# Workflow: Create a Mapping through the Design Center UI

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

1.  [Define Input and Output Structure of a Transformation](https://docs.mulesoft.com/mule-runtime/4.9/transform-input-output-structure-transformation-design-center-task)

    Provide expected input and required output structures.

2.  [Graphically Construct a Mapping](https://docs.mulesoft.com/mule-runtime/4.9/transform-graphically-construct-mapping-design-center-task)

    Drag elements of the input and drop them onto elements of the output. You can also include fixed
    values and functions to build out the output.

3.  [Preview the Output of a Transformation](https://docs.mulesoft.com/mule-runtime/4.9/transform-preview-transformation-output-design-center-task)

    Verify that the transformation produces the expected output.

## See Also

[DataWeave Language](https://docs.mulesoft.com/mule-runtime/4.9/dataweave)