Abstract: A method of and a system for designing a project include forming a plurality of detail images representing details of the project in miniature form, projecting the detail images on a common screen to superimpose them and to thereby produce on the common screen a composite display of the project in miniature form, varying optical parameters including color of the detail images so as to produce a plurality of composite displays with different sets of optical parameters, selecting the composite display with ultimate set of optical parameters, measuring the optical parameters of this set, transforming the thus-measured optical parameters in accordance with laws of transformation into corresponding optical parameters of the full scale project, and producing the latter based upon the transformed optical parameters so as to obtain the full scale project with ultimate set of optical parameters for the same.