I'm looking for best practices for workflow design in PowerPoint using alt text.

Let me clarify, the workflow is setup, the reading order is correct, I have grouped sections and added alt text. It was recommended I also include an outline of the workflow text. This extra outline step is where I'm confused. I'm wondering if it's best to create a separate slide with just the outline, add the outline to notes or add the outline directly to an open area of the workflow. This is converting to PDF.