A worklet is an object representing a set of tasks created to reuse a set of workflow logic in multiple workflows. You can create a worklet in the Worklet Designer.
To run a worklet, include the worklet in a workflow. The workflow that contains the worklet is called the parent workflow. When the Integration Service runs a worklet, it expands the worklet to run tasks and evaluate links within the worklet. It writes information about worklet execution in the workflow log.