A step is a stage in a workflow where a distinct, well-defined kind of work is performed. Each step on a workflow map represents a specific activity or task in the business process you are defining.
Process Designer provides palettes of pre-defined steps in the docked palette of the steps section that you add to the workflow map to represent different types of activities. You can work with the docked palette or click the right arrow icon >> Open Palette Window to work with a floating palette. Each type of step provides an appropriate interface where you define the parameters for processing that step.