During my capstone project for the smart-cast, we’ve missed a couple milestones due to external factors. We also just a gantt chart to record our progress, and when we missed a milestone it would set us back considerably. Things like the 3d printer not working or components not shipping on time would contribute to missed milestones. However, I quickly realized that building a contingency plan within the gantt chart itself would be the best solution in order to ensure a realistic project schedule without having to sacrifice features. We explained this issue with our project manager very honestly and transparently, and we always came prepared with a contingency plan. Sometimes we scrapped the milestone since we realized it was not needed. Overall, it’s a learning experience whenever you miss a milestone. The important thing I realized was to be prepared in the face of such circumstances occurring and use a contingency plan in the advent of missing a milestone.