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The increasing development of civilization is one of the important issues exacerbating urban problems, such as pollution, poor sustainability, and weak security. The creation of ubiquitous cities (u-city), with intelligent convergence systems, is a solution to overcoming these problems. The u-city is at a more advanced level than a smart city, and building a smart city is a step toward the u-city. Thus, this study develops an effective framework to determine the required platform toward establishing a u-city by explores the main components of a smart city, such as citizens, environments, and key infrastructures, and the criteria to measure each component. The interaction between the components and their criteria, are specified using the Analytical Network Process (ANP) and the Decision-Making Trial and Evaluation Laboratory (DEMATEL) methods Finally, according to the weights obtained, a ubiquitous coefficient for a …