I built this branching scenario in the open source tool Twine. This scenario is moderately complex, with a total of 17 pages (or passages in Twine terminology) and 8 different endings. The ideal path has 5 decisions to reach the best conclusion.
SMEs who are accustomed to working on traditional elearning may be uncomfortable or unsure how to help you write scenarios. I have used these 3 tricks to help SMEs get “unstuck” while working together.
One truth I have learned about instructional design is that I will never create a