The major weakness of Delphi is the lack of a theoretical framework. Delphi as a research methodology has been variously presented as a survey, study, procedure, method, approach, polling, and technique [14] [29] [30] [31] [24] [25] [32] [33] [11] [34] [35] [36] [37] [38]. Nevertheless, it is generally acknowledged that the Delphi methodology is not uniform in its application [17] [1]. In addition, there are always ambiguities about the application requirements, panel size, how to select the panel, and recognizing the end of Delphi stages. In this comparative study, a framework is presented for the application of the Delphi technique in the qualitative decision-makings.