Screenshots and outputs from ChaStrobe, a simulation-based scheduling software for repetitive projects with probabilistic activity durations according to the Sequence Step Algorithm, SQS-AL. ChaStrobe is built on top of Professor Julio C. Martinez's Stroboscope (http://www.ezstrobe.com/). Both ChaStrobe and Stroboscope are Ph.D. dissertation at University of Michigan, supervised by our beloved Professor Photios G. Ioannou. Cited from my thesis: For Professor Photios G. Ioannou. My academic journey would not have been possible without my beloved and respected advisor, Professor Photios G. Ioannou. Great indebtedness goes to his belief in me and the opportunity he has offered to continue my academic journey at the University of Michigan. It has been an honor to work under his direction. During the development of this research, he has always reinforced to me that we can make a difference, a great one. And here I am, with this research. His interesting guidance, valuable advice, and constructive skepticism have contributed to the achievement of this research. I wish him and his family a blissful and healthy life. For Professor Julio C. Martinez, who's gone too soon. Special acknowledgement goes to Professor Julio C. Martinez for his technical support in Stroboscope. His thesis and Stroboscope inspire both my thesis and my application for this research, called “ChaStrobe.” Without his support and Stroboscope, I may have taken a more difficult path in establishing the application.