The gain chart is very important to keep track of time and organize subtask. It helps you to visualize dependent and independent task to better manage your project. I learned how to construct my first gain chart during my first Co-op with Panasonic. Managment ask to build the gain chart from the end and, work it all the way back. I was confused but with practice and it makes a lot of sense as Dr. Simon mention it helps too for risk management analysis. Also, I used it to manage my final project. we had a delay in the shipment, parts allocation and we had to change our plans accordingly. I think if we were not using the gain chart, we would never notice that we could miss the due days and end up failing. It is very beneficial when you visualize the progress on a time tracked system. As well as managing subtask and ownership of tasks.