This book constitutes the refereed proceedings of the Second International Symposium on Systems Modelling and Simulation, SMS 2026, held in Johor, Malaysia, during May 4-5, 2026,

The 23 full papers presented in this volume were carefully reviewed and selected from 53 submissions.

They are grouped into the following topics: Emerging Trends in Engineering and Computing, Modelling and Simulation for Digital Transformation, and Intelligent System and Applications.