What will the interface look like
- Wireframing : Sketching the major elements of an interface early using paper, Visio or PowerPoint is sufficient for understanding functionality, flow and opportunities for improvement. It allows you to get designs in front of stakeholders.
- Prototyping : Add a level of fidelity to your designs and get them tested early and often. Lean UX means generating the minimum viable prototype. Be ready to throw it out and start over. There are a plethora of prototyping tools for non-coders that turn images and sketches into hosted websites and clickable screens. Try Justinmind, Axure or Balsamiq.