Saad Aldoihi is Assistant Research Professor at KACST. Aldoihi received his Ph.D. from Institut Polytechnique de Paris where he specialized in system engineering, System Modeling, and Complex System Design. Aldoihi’s research lies at the crossroads of Computer Science, System Engineering, System Modeling and Cognitive Science. Aldoihi primary focus is modeling complex systems in respect of healthcare, energy, Artificial intelligence, Machine Learning, smart-homes, and smart cities. The interest topics include System Modeling, Complex system modeling, system of systems, Product Data usage, Usability, user experience, and human-machine interaction.