SharePoint Designer 2007
To create a workflow in Microsoft Office SharePoint Designer 2007, open SharePoint Designer, click File, then click New, and finally click Workflow. This brings up the Workflow design wizard. Using this wizard, you can define the input fields the workflow will collect from users when the workflow is initiated, and much more. Figure 1 shows the first step of the Workflow designer.
After clicking the Initiation button to define the data that users will supply to the workflow to start up (such as the list of potential reviewers or other initial data) and the Variables button to manipulate the Workflow local variables, you click Next to begin defining the individual steps involved in your custom workflow. This step will create a new task in the specified task list called "Sample Task" and will assign it to the user who initiated the workflow (which is also the user who created the workflow-specific task).