The visualisation of system status and ongoing processes has enhanced user understanding. A user's interaction with a CAD application lies in how the system is easily perceived via its graphical user interface. An attempt is made to gain firsthand information about the variability and usability of icons, contextual to their application. The study's goal was to look into the factors that influence user perception of icons and their relational aspects.

The methodology adopted was based on comprehending the underlying concepts of GUI in CAD software by analysing and evaluating icons that were selected from various contexts, viz., visualisation, drafting, analysis, and modeling. The icons were tested for critical evaluation amongst designers, graphic visualizers, users of the same software, architects, engineers, etc. to understand their perception of variability.