Urban design and landscape Architecture are considered as modern Art (knowledge) which are
developed through integration of various Art and science fields of studies. Formal emergence of urban design
in 60s and landscape design is occurred at the beginning of 20th century. The success of these two fields is
because of their attention to environmental qualities upgrade in public and open spaces all over cities. Indeed,
these two fields have got similar approaches to designing open spaces; this article is looking forward to deliver
proposals regarding suitable integration among experts of these two fields.This research is based on a qualitative
and quantitative approach; using ‘grounded theory method’ and applying ‘content analysis’ in questions
extractions analyze the practical mechanisms among experts in these two fields in Iran. The emphasis of this
research in procedural aspect is based on the four-level order of relations among design component including:
design-planning, management-guidance, control-policy and conservation-catalyzing, as the most important
common role of urban design and landscape architecture, is to achieve an effective interaction pattern. In
addition, to substantial aspect designing urban landscape and urban spaces is considered as a common subject
among landscape architects and urban designers. At the end, based on incorporation of substantial and procedural
components, a system of correlation between these two fields is proposed.