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The goal of this research is to study the effective factors in order to overcome resistance to change. In today’s competitive world, change is the most critical competitive advantage of an organization to adapt to new circumstances. The failure rate of change projets is more than 70% and there are various factors responsible for this high rate. One of the most important factors is resistance to change. In this research, traditional studies of change starting in the 19’s by Kurt Lewin is the strat point, who had initiated the studies of this field with his three-step model. In recent decades, newer models have emerged which in contrast with previous versions, focused on an individual as the... 

A great rise in the number of projects undertaken simultaneously within organizations and consequently, a further increase in the complexity of managing them, has led to emerging innovative forms of organizational structures. There are new concepts developing in project management literature such as program management, portfolio management and project management offices (PMOs). PMOs have recently been used as a means for managing large projects, based on the need for an overall, coherent approach. Project offices are established to coordinate portfolios of projects and achieve project management oversight, control and support. Based on the structure and definition proposed by Hill (2004), it...