Building Design for Fabrication is a solution for innovative and complex architecture employing Design for Manufacture and Assembly (DfMA) methodologies, LOD 100 through LOD 500.    It enables collaborative engineering whereby multiple interested stakeholders resolve conflicts, bargain for individual and collective advantages.  This collaboration is empowered by the digital prototype, a computational and visual method of addressing problems associated with designing complex projects and systems.  Building design for Fabrication provides 3D modeling, architecture design, computational design, structural design, component engineering, model based system engineering, FEA and CFD simulation, 4D modeling, knowledge driven automation, change/task/clash management, PLM, portfolio management, and more.