SECURE CENTRALIZED PATIENT INFORMATION SYSTEM FOR REAL-TIME CLINICAL DECISION SUPPORT

Fragmented, paper-based clinical records have been shown to negatively impact healthcare delivery and decision-making timeliness, leading to delays, medication errors, and poor care coordination. The purpose of this paper is to report on the design, development, and testing of a Secure Centralized Patient Information System (CPIS) that enables real-time access to electronic health records (EHR). Utilizing Object-Oriented Analysis and Design (OOAD), the CPIS was developed as an ASP.NET application written in C#, utilizing Microsoft SQL Server as its database back-end. In addition to OOAD, the CPIS utilizes multi-factor authentication (MFA) and role-based access control (RBAC) via Microsoft.AspNet.Identity. Four key components (patient record management, appointment scheduling, laboratory results, and user administration) are combined into one platform. Across 150 latency trials (n=30 trials per operation), the CPIS demonstrated a mean response time of 127.5 milliseconds (Standard Deviation = 8.3ms) at or below the 200ms real-time threshold. Testing for security and functionality resulted in confirmation of all MFA, RBAC, and module functionality. As such, the CPIS serves as a viable starting point for integrating future AI-driven clinical decision support systems.