Observing the dialectical conflict between a conservative approach and uncontrollable changes, a new paradigm emerges in which the planning and management of the utilization of water resources require a new approach. To elaborate a strategic plan for that it should be considered an integrated vision of urban water system which would be fundamental to conceive management measures towards water sustainability. Nevertheless, the approach about this interaction should be beyond a conservative analysis which is simply technical and economical. It is necessary to search and introduce new values...