Advances in healthcare have led to longer life expectancy and the so-called aging population trend. The cost of caring for the elderly is rising progressively and threatens the economic well-being of many nations around the world. Instead of professional nursing facilities, many elderly people prefer living in their own homes independently. To enable successful aging in place, this research explores the roles of technology in improving the quality of life while reducing the cost of healthcare to the elder population. In particular, we propose a multi-agent service framework, called Context-Aware Service Integration System (CASIS), to integrate event-driven services with the OSGi service platform. This paper presents several context-aware service scenarios that have been developed on the proposed framework to demonstrate how context technologies and mobile web services can help enhance the quality of care for an elder's daily life.