This article has profoundly explored the migration of legacy healthcare systems. It has precisely focused on B3, to Salesforce with refactoring through the Lightning Design System (LDS). The transition can help to significantly enhance mobile user experience (UX) and clinical efficiency. The study has demonstrated that the legacy systems, while foundational, hinder modern healthcare workflows and mobile accessibility.

The study has illustrated that through leveraging LDS of Salesforce, the approach of modernized healthcare interfaces could be achieved, and it will also help to ensure better data access and enable to enhanced clinician-patient interaction. The solution demonstrated here focuses on user-cantered design as well as data migration, along with improvement. The solutions proposed here intended to improve the efficiency of the operations and optimize patient care through interconnected healthcare system.