Between February 2000 and March 2004 the international comparative research project OASIS had been conducted by partners from Israel, Norway, England, Germany, and Spain. The main objectives of the OASIS project were to explore how family cultures and service systems support autonomy and delay dependency in old age, to promote quality of life, and to improve the basis for policy and planning. The OASIS project aimed to add to current scientific debates on family solidarity and conflict, norms and values in areas such as preferences for care, use of services, coping strategies and quality of life. More precisely, the project examined how these concepts can be measured and predicted under different societal macro conditions, such as welfare regimes and family cultures. The OASIS project provides a knowledge base which can help to enhance the quality of life of elders and their family caregivers. It showed how family roles, service systems and individual styles of coping interact and influence the quality of life in old age. The project also demonstrated how different family cultures and welfare systems promote quality of life and delay dependency in old age. In summary, the OASIS project scientifically studies older people's quality of life, analyzing the balance between family care and service systems and their relation to welfare regimes. It describes variations in family norms, expectations and transfer behaviour across age groups and between countries, and examines the individual's and family's coping strategies when an elderly parent is at risk of becoming dependent.