ABSTRACT: The graphical user interfaces of software programs are used by researchers in the soft-ware engineering field to measure functionality, usability, durability, accessibility, and performance. This paper describes a reverse engineering approach to transform the captured images of the distributed GUI’s into class diagram. The processed distributed GUI’s come from different and separate client computers. From the distributed GUI’s, the inter-faces are captured as images, attributes and functions are extracted and processed through pattern recognition mechanism to be stored into several temporary tables corresponding to each client’s graphical user interface. These tables will be analyzed and processed into one integrated normalized table eliminating any attribute redundancies. Further, the normalized the one integrated table is to create a class diagram.