A dense description of the research methodology was given in this study. Finally , confirmability was achieved by applying reflexivity , leaving an audit trail and triangulation (Streubert & Carpenter , 2007 : 98 ;Van der Merwe , 2013 : 61-62). A chain of evidence , that is research proposal , transcribed interviews , naive sketches , field notes , data analysis and research report , was provided for the whole research process of this study.