|London Olympia from the outside|
1. Developing the level of detail
The level of detail surrounding the objects develops slowly throughout a project. Objects such as boilers, chillers, air handling units and tanks need generic place holders with approximate basic geometry. This geometry must include not only the physical space – but also the maintenance regions required around the object. As the design progresses then the generic performance properties need to be completed on the objects in the model. And then finally this information should be developed to a stage where outputs for fabrication, installation and operation are all possible.
2. Concentrate on the information
An international BIM design package is very unlikely to include all of the analysis tools required to meet the needs of a local market (this is clearly true for structural and architectural software as well as engineering software). Information must flow from one software package to the next without the need for the user to re-key data. If you have to rekey information... is it really a true BIM process? Common schemas for engineering systems and products for the UK market need agreed – and this should respect the international open data formats such as IFC and gbXML.
|London Olympia from the inside|
|Example performance specification in NBS Create|