1. User-Friendly Interface: Easy navigation is crucial given the busy schedules of nursing staff. 2. Mobile Compatibility: Many nurses are on the move, so mobile access is essential. 3. Secure Data Management: Given the sensitivity of personal and payroll information, robust security measures are a must. 4. Integration Capabilities: The ESS should seamlessly integrate with existing hospital management systems. 5. Customizable Dashboards: Personalized dashboards can help nurses quickly access the information most relevant to them.