made several changes to reflect new understanding of the architecturemade several changes to reflect new understanding of the architecturemade several changes to reflect new understanding of the architecturemade several changes to reflect new understanding of the architecturemade several changes to reflect new understanding of the architecturemade several changes to reflect new understanding of the architecturemade several changes to reflect new understanding of the architecturemade several changes to reflect new understanding of the architecturemade several changes to reflect new understanding of the architecture