Background
A major hospital network was implementing a new EHR (Electronic Health Records) system to replace legacy systems across 50+ locations. The system handled patient records, appointments, billing, and pharmacy integrations.
Testing Challenges
- Complex data migration from 3 different legacy systems
- Strict HIPAA compliance requirements
- Real-time synchronization between departments
- 24/7 uptime requirements with no tolerance for data loss
Testing Strategy
Data Migration Testing
- Developed custom scripts to validate 5+ million patient records
- Implemented checksum verification for data integrity
- Conducted parallel run testing for 30 days
Compliance Testing
- Performed penetration testing using OWASP methodologies
- Implemented automated audit trail
- verificationConducted role-based access control testing
Optimization Statistics
Performance Testing
- Simulated peak loads of 5,000 concurrent users
- Tested failover scenarios for high availability
Implementation
The team established:
- A dedicated test environment mirroring production
- Automated regression suite with 2,500+ test cases
- Continuous monitoring during rollout
Results
- Successful migration with 99.998% data accuracy
- Zero compliance violations post-implementation
- System handled 300% increase in peak usage
Lessons Learned
- Early involvement of compliance teams was criticalData mapping required m
- ore time than anticipated
- Real-world usage patterns differed from projections
