What is a workflow? What is a single-step task?

A single-step task is based on an object type from the object business repository (BOR) (for example, a purchase order) and a method for the object (for example, change). A workflow can contain several single-step tasks and activities such as loops and forks. Through a workflow, you create a logical sequence for the single-step tasks. The tool for creating or changing these types of workflows (workflow template) is the Workflow Builder (transaction SWDD).