The document discusses patient record systems, including their definition, principles, value, purpose, importance, and classifications. It covers paper-based and electronic documentation systems. Paper-based systems can use source-oriented, problem-oriented, or graphic methods. Electronic systems include electronic medical records, electronic health records, and computerized patient records. The objectives of patient record systems are to review patient care, provide an archival record, support research, and facilitate administration and auditing. Both paper-based and electronic systems aim to properly document a patient's condition and care over time.