If there is one advice I would like anyone to take from
me on the topic of BIM, it would be:
Do it my way or don’t do it at all!
Now, that is an arrogant statement even coming from me,
someone that over the last couple of years has become more-less known in this
field of Global BIM for putting out subjective, flippant statements that the BIM
majority did not like and often publicly declared as simply ‘untrue’.
A couple of days ago, my middle daughter turned 20th.
This fact brought home the realisation, that it is
exactly 20 years since I bought my first ArchiCAD licence. That date did not
mark my introduction to (what much later become) BIM, for a number of years
before 1996 (about 5) I dabbled with 3D AutoCAD (fully modelled buildings with
it in DOS).
So, this birthday became the trigger for another
realisation, that it is time to stop being the ‘Nice Girl of BIM’ –
pussyfooting over the ‘herd of elephants’ in this field that Global BIM is and
once for all, write up my list of 5 musts for a BIM system to work at any scale.
The following 5 points cover the essentials of the ‘who,
what, how and what with’ of a working BIM system. There could be variations on
the build-up (yeah, yeah, the devil is in the detail) of the system, but these are the fundamentals:
1. Main,
modelling tool must be ArchiCAD; Revit is a dog, and if you are not going for
Revit for political reasons, might as well go with the best tool still on the
market.
2. Your
workflow must be set up for constant cross referencing of 2D-3D data. No matter
of the level of ‘mandated BIM’ on a project of any reasonable size, most of the
data will keep on flowing on PDF’s. Your modelling tool must be able to handle
PDFs well – and many of them in one model. Again, you must use ArchiCAD.
3. Ignore
any meta-data until you model with construction integrity. This applies to
Cobie and other super-duper ‘i' strategies. They all sound good, but if the foundation
of your BIM is shaky because of your model integrity, you will be wasting a lot
of money with very little benefit for anyone. (hint: employ someone to manage
these magical ‘i' flows, but keep them away from the ones that are doing the
real work);
4. Your
key person is your Chief Model Manager and you must not have more than 2 people
sitting in that role even at the biggest
of projects. (2 people will give you the redundancy you need to manage the risk).
Your Chief Model Manager must be a fully hands on modeller and interested and know how buildings go together spatially and
logistically.
5. Don’t
burden your Chief Model Manager with writing or implementing mainstream type
BIM plans, get someone else do it, if mandated by
the project.
There. You are welcome.