This thesis aims to identify the parameters for the integration of archaeological sites in metropolitan city centres with urban life. The Agora of Smyrna was chosen as the case. The method proposed has five phases: Literature review, archival research, physical and social surveys; the Delphi study; and statistic evaluation. The Delphi study was used to define integration criteria and their weights. The correlation and regression analysis were carried out to define the content and level of integration of the citizens with the site. Sequential according of the criteria set with information coming from different sources such as literature, social surveys and Delphi study distinguishes this study from the previous work. Identification of weights of criteria via the structured communication technique made it possible to attribute significance to the outstanding aspects of integration. The indicators of each criterion were clarified and criteria were classified to define integration concepts. So, an integration framework with a hierarchical structure was developed. The integration concepts “Possesing physical access”, “Possessing social usage”, “Being a well-presented site”, “Being a well-managed site”, and the “Presence of public concern for the conservation of the site” were identified as significant for integration. New integration concepts such as “Providing benefits to its vicinity”, “Being surrounded by a qualified urban area”, and “Awareness and positive perceptions of the site’s vicinity” were identified. “Presence of public concern for the conservation of the site” is the most important integration concept whereas “Providing benefits to its vicinity” is the least important integration concept for the case of Agora. The integration level of Agora with urban life and the integration of the citizens with the site was determined as moderate.