Interior design is a complex multi-disciplinary field of study. As novice designers, interior design students require effective methods to convert the multitude of field data in the early stages of the design process into those that can be understood for further analysis. This paper develops the idea of transforming field data on site into diagrammatical indexes with the help of digital software. The aim is to provide a more practical method of analyzing user behavior and site conditions in which students focus on identifying intensities or patterns of the data observed on site rather than making descriptions of physical details as often done in conventional field surveys. Methods include identifying the aspects to be analyzed (occupancy, lighting, circulation, noise, ventilation, etc), creating suitable graphic indexes for each aspect of analysis, overlapping each diagrammatic index into one single diagram and analyzing the holistic data based on the interconnections between indexes formed. Results show that this method of representing data provide a visually artistic yet efficient way of making quick readings of the site as compared to conventional ways of collecting field data. Interior designers can also directly provide design solutions and produce innovative designs based on the site patterns observed
