Chen described this stage of the work as involving the “ integration of many different ideas. ” Pei ’ s co-workers would also make occasional suggestions. It was during this period that the design incorporated “ lines of sky ” to separate the four “ boat walls. ” It was thus that the distinctive elements of the design took shape.
此階段的設計工作，陳其寬自稱是「很多觀念的集大成者」，他在貝聿銘位於紐約公園大道的舊辦公室構思設計，貝聿銘的同事偶爾會提供意見，譬如，4 片「船壁」接合切面分開的「一線天」，以及拋物線雙曲面造型的構想，此時便逐漸成形。