The three workflows available.
When you save a file to a document library on a SharePoint Server 2007 site, you have three workflows available to you:

The Approval workflow: This workflow asks everyone to approve a file. For example, before giving a presentation, you might run this workflow so that influential people at your company can approve it.

The Collect Feedback workflow: This workflow collects feedback. For example, if you are writing a new company policy, you might want feedback from people in various departments. Then later, you can integrate everyone’s feedback into a final version before it becomes official.

The Collect Signatures workflow. This workflow collects digital signatures from people. You might use this if you want someone to sign an expense report, or a performance review.