Clinical Document Architecture (CDA) is a Health Level Seven International (HL7) standard developed for swapping clinical documents (think of, for example, discharge summaries and progress notes) by different healthcare systems. It defines how clinical records are structured and worded to ensure interoperability and consistent information exchange. CDA uses the XML format to encapsulate and present clinical information, making it accessible and understandable across diverse healthcare I.T. systems. This standard is crucial in improving communication and information sharing among healthcare providers, ultimately contributing to better-coordinated patient care.