Abstract
Amidst the increasing interest in consumer health informatics (CHI), a clear definition of the concept and its domain is absent. Based on the available definitions of the term and literature in the domain, we present an ontology of CHI. The ontology encapsulates the logic of CHI parsimoniously and yet articulates its combinatorial complexity. It integrates the health care, consumer, and informatics dimensions of the concept and provides a panoramic, systemic perspective. It makes the CHI “elephant” visible. The ontology can be used to articulate the components and fragments which constitute CHI using structured natural English sentences and phrases. It serves as a multidisciplinary lens to study the topic drawing upon concepts from information systems, knowledge management, health-care consumerism, and health-care policy and can be used to develop a systematic roadmap for research and practice in CHI.
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