Assembling A Collaborative Team - Other - Page 87
80
Figures 7.2 and 7.3 are based on ‘analogue’ Information Exchanges. The online
tool at www.ribaplanofwork.com/toolbox will be updated as further clarification of
(‘digital’) level of detail is achieved. Appendix 1 of the CIC BIM Protocol document
contains a Specimen Production and Delivery Table and has a similar purpose to
the Design Responsibility Matrix.
What is meant by level of detail?
Although CAD or BIM information is produced ‘full size’, it is typically issued, or
exchanged, as drawings in ‘hard’ (prints) or ‘soft’ (electronic) formats, with the
level of detail added to the CAD model dictated by the scale of the output (i.e.
1:100, 1:50, 1:5, 1:1, etc.). BIM changes this approach as such outputs are no
longer required (although it is likely that 2D ‘slices’ through a model will continue
to be used as contractual documents for some time). The level of detail question
therefore progresses from an issue of scale to one of purpose. For example, if the
model is being used for design discussions with a client, one level of detail is
required in the model, whereas a model being handed over to a specialist
subcontractor (for example, to develop the curtain walling) requires a different
level of detail. As this transitional subject is in an embryonic state, the Information
Exchanges in the Design Responsibility Matrix are conceived in a manner that
considers the output scale. Clarity on the appropriate digital level of detail is
being developed and will be published in the future.
www.ribaplanofwork.com
