Sundaram, S. 2026. Digital Twin Simulation of Enterprise Healthcare Integration Environments: A Virtual Modeling Framework for Pre-Deployment Validation, Capacity Planning, and Failure Scenario Rehearsal. International Journal of Emerging Trends in Computer Science and Information Technology. 7, 2 (Apr. 2026), 49–57. DOI:https://doi.org/10.63282/3050-9246.IJETCSIT-V7I2P108.