Demographic, economic and social conditions developed countries are faced with require a paradigm change for delivering high quality and efficient health services. In that context healthcare systems have to turn towards individualized of patient's care, also called personal care. Interoperability requirements for ubiquitous personalized health services reach beyond current concepts of health information integration among professional stakeholders and related Electronic Patient Records ("e-Health"): Future personal health platforms have particularly to maintain semantic interoperability among systems using different modalities and technologies, different knowledge representation and domain experts' languages as well as different coding schemes and terminologies to include home, personal and mobile systems. The paper introduces the evolving paradigm related to personal health information systems.
