hData is a specification for capturing, managing, and exchanging electronic health data.

Current electronic health data standards are overly complex, hard to implement, and difficult to manage. hData is a simple XML-based, flexible framework that addresses these issues and lays the foundation for efficient health IT technologies.

hData is designed for ease of implementation and improved efficiency by reducing the size of the data set, implementing a single way to represent data, and using standard XML best practices.