1. tablet -> phone: initially I envisioned the app on a tablet to accommodate the augmented reality experience view, however we realized that our app is location based, having the app on the phone will maximize the mobility.
2. all neighborhoods -> Pioneer Square: with our given timeline, we won't be able to collect all the stories from all neighborhoods in Seattle, instead we focused on gathering data from Pioneer Square.
3. self locating -> location guidance: instead of giving the users just some pin points on the map, we put a location guidance service within the app to guide the user to the specific location where they can experience the AR view.