This paper outlines a set of data analysis procedures developed through a case study on school-based instructional supervision at a private secondary school. These procedures should not be taken as strict rules in qualitative data analysis, but be viewed as flexible guidelines that may be adopted as a whole or be modified to suit the nature of the respective study. This data analysis approach outlines a process to explore underlying concepts and events, discover patterns and relationships that give shape to the data, and finally organize the data for meaningful representation of the reality.