“…Thus, a wide range of research focuses on PR planning, campaign analysis and evaluation. Significant work has also been conducted on the operational roles of practitioners as communications technicians, with a tactical focus on execution (for example, writing press releases, selling news stories in to journalists, compiling research data), and communications managers, who have a more strategic perspective of communication (for example, developing and implementing policy in light of organizational objectives, analysing external factors and interpreting them in light of the organization's objective) (Berkowitz and Hristodoulakis, 1999;Broom and Dozier, 1986;Grunig et al, 2002;Kelleher, 2001;Pasadeos et al, 1999;Terry, 2001;Vasquez and Taylor, 2001).…”