A Graphical User Interface (GUI) that includes visual representations of executable program elements of a programming language is presented on a display. The GUI enables a user to select and graphically manipulate the visual representations of the executable program elements to form a visual representation of a computer program that includes selected ones of the visual representations. The visual representation of the computer program is translated into computer program text that includes the executable program elements represented by the selected ones of the visual representations, and non-executable comments specifying the selected ones of the visual representations. Conversion from computer program text into visual form including visual representations of executable program elements in the received computer program text is also possible.