openBIM is a method to Building Information Modeling (BIM) that uses open standards such as Industry Foundation Classes (IFC), Building Collaboration Format (BCF), and also services buildingSMART Data Dictionary (bSDD). It has gained popularity in the architecture and construction industries for its ability to facilitate collaboration between various disciplines. openBIM Workflow is also particularly effective in Daylight Design and Analyses, where it can facilitate and help designers, reduce energy use through the implementation of daylight strategies through simulations and communication regarding design decisions.
For example, architects and consultants can perform daylight simulations at the early stages of the design process to determine the ideal placement and size of windows, skylights, and shading devices or glare protection as well as measures to avoid overheating. These simulations can be used to evaluate the impact of design decisions on energy use and occupant comfort, ensuring informed decision-making.
      openBIM enables architects and sustainability consultants to collaborate effectively by sharing data and working together in software neutral way, reducing errors and streamlining workflows. Sustainability consultants can access the BIM model, in this case IFC-Models to perform daylight simulations and energy analyses, while architects can incorporate changes based on the results of these analyses, communicated via Issue Management and BCF. This approach ensures that the building design is optimized for energy performance and occupant comfort from the outset.
      In summary, openBIM, when combined with daylight design and analyses, can lead to efficient collaboration between architects and daylight experts, lighting designers and sustainability consultants, resulting in significant reductions in building energy use. The use of open standards of buildingSMART such as IFC, BCF, and bSDD facilitates effective collaboration, ensuring that the building design is optimized for both energy performance and occupant comfort.