The creation and maintenance of intense and diversified patterns of interaction among previously autonomous units.
Wallace, W. (ed) The Dynamics of European Integration. (London: Pinter Publishers). 1990:9
When there is an interest in both maintaining one’s original culture, while in daily interactions with other groups, Integration is the option; here, there is some degree of cultural integrity maintained, while at the same time seeking to participate as an integral part of the larger social network.
Berry, J. W. , 'Immigration, Acculturation, and Adaptation'. Applied Psychology:An International Review, 46: 5–34. 1997:9