Based on your selected prototyping method, think what resources you may need to build it and what you already have on hand. Is there any monetary expense? Do you have enough people to build and test the prototype?
What are you testing – which aspect of the product/service or what assumptions?
What metrics are needed – how will you determine the success or failure? What metrics you should develop to rate the response and feedback to determine your progress?
Time, place, people, & materials – who will be testing your prototype? Where will this take place? Are there any logistics /set up you should ensure before the testing?
Visually present the prototype building plan and the flow of your testing.