The aging individuals living independently at home need new kinds of services. Digitalization of services and the wellbeing data gathered from the individual creates an opportunity for optimized and punctual services. It is important to pilot the new technology solutions at actual home and well-being environments to get certainty of usability, flexibility and accessibility of the digitalized services for citizens and nurses. The implementation of digitalization has to happen according to ethical rules and take the values and individual capabilities into account. The data gathered through digital equipment can be used in optimizing service processes. However, there is missing generic data as common ontology of service process and semantic architecture to use the gathered data for service optimization. In the article is introduced what type of ontology based semantic architecture could be used in social and health care and how geriatric data should be integrated in caring elderly people.