Many hospitals have systems in place and are now or will in the future face the task of determining which data in the previous system should be migrated or mapped to the new system. Look at this topic from both the health information management and information systems perspective. Select one or two systems, such as registration, admissions-discharges-transfers, billing, chart tracking, or release of information, and identify which data elements would need to be brought forward to a new system and why. Identify which data elements have long-term value for patient care and which data elements must be preserved and accessible but may not be actively used for patient care.