Detailed virtual testing of building components (such as facades) offers significant opportunities at the design stage. This involves modelling of a detailed building subsystem in collaboration with a specialist contractor to analyse design alternatives and solve design and constructability issues. BIM Consulting can perform this process at various levels of detail depending on project needs. An example of this is to create a highly detailed model of a small portion of the building, such as the façade. This optimised mockup process translates seamlessly into the manufacturing process with millimeter accuracy and can be tightly controlled with quality checking and cost analysis.