Structured data standards like HL7 (Health Level 7) and FHIR (Fast Healthcare Interoperability Resources) play a pivotal role in data visualization with DITA in healthcare. These standards provide a structured and standardized way to represent healthcare data, making it easier to integrate, exchange, and visualize data effectively in DITA documentation.

For example, HL7 and FHIR define common data elements, data models, and standardized terminologies for healthcare information. When integrated with DITA, these structured data formats enable healthcare professionals to create visualizations based on patient data, clinical records, or health statistics. Using DITA, you can incorporate HL7 or FHIR data seamlessly and present it through various visualization techniques such as charts, graphs, or interactive dashboards.

Example:

Suppose you have HL7 data representing patient vital signs, and you want to visualize this data in your healthcare documentation. In DITA, you can embed a chart that shows the trend of vital signs over time:

<!-- Example of embedding a chart with HL7 data in DITA -->

<image href="patient-vital-signs-chart.png" alt="Patient Vital Signs Chart" />

This chart is created using HL7 data, providing a visual representation of a patient's vital signs over a specific time frame. Structured data standards like HL7 and FHIR make it possible to standardize and visualize healthcare data efficiently within DITA documentation, improving data interpretation and analysis.