Designers, suppliers, manufacturers, importers and installers must ensure so far as reasonably practicable that buildings, equipment and technology used at a workplace do not create WHS risks, and must consult each other and clients: manufacturers with equipment designers, importers with designers and manufacturers, and the person commissioning construction work with the structure's designer, such as for a hospital building. Designing out risk is often the most effective control. For example an architect designing an aged care home with its client agreed to install ceiling hoists after a risk assessment, despite some residents' preference for a more home-like setting, because both owed a duty to prevent worker injury from manual people handling.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.