There are several important factors to consider when you are planning to do prototyping for user testing. You will want to make careful choices about fidelity, level of interactivity and the medium of your prototype. Chris Farnum offers descriptions and best use scenarios to help you make the best prototype decision for your tests.
The way you communicate the personas and present your deliverables is key to ensuring consistency of vision. Without that consistency, you’ll spend far too much time arguing with your colleagues about who your users are rather than how to meet their needs.