This Technical Report summarizes the body of work conducted by CIE Technical Committee 1-27 "Specification of Colour Appearance for Reflective Media and Self-Luminous Display Comparisons" from 1990 until 2001. After compiling data from researchers around the world and studying various forms of colour appearance models to predict results from hardcopy/softcopy matching experiments under a variety of viewing conditions, it was discovered that the same colour appearance model would not consistently or adequately predict the visual results. In 2001, all CIE TC1-27 results were passed along to CIE TC 8-01, Colour Appearance Modeling for Colour Management Systems. This Technical Committee within Division 8 formulated an effective colour appearance model by combining the best features of the colour appearance models that were studied by CIE TC1-27. The result was the development of the CIECAM02 colour appearance model.