Swift is an architectural parametric tool for Rhino3D. It targets matching cyclic-revolutionary design process, and facilitating modeling and documenting of architectural practicing, thereby architects’ working efficiency is improved hugely. Swift is mainly developed for Schematic Design and prophase of Design Development. Architects can deal with all of design issues – plan study, exterior design and interior design – in the same software and file. Swift is also highly automatic and parametric, based on analyzing and neatening complicated relationship in architectural design.