I read where for larger projects were being split up into separate models and then linked to each other and a main MEP central. Our training class and all Autodesk tutorials i've seen dont suggest this. We are having major performance issues and we were thinking about creating an M/E model, a Plumbing model, and have them linked to the MEP central. Our problems are that we dont know how to show any views newly created in the Plbg model to show in the MEP model as well as being able to connect equipment from the Plbg model while in the M/E model. Im using MEP 2010. We dont know what the best way is for a 4 story bldg split in half (2 sheets per floor, per disipline). One MEP model, or separate M/E & Plbg models. Now its easy to say which one to use, but how to use the split option is hard to find anywhere.
I would suggest not splitting up the model.
The intention of the software really isn't built that way.
You won't be able to have logical systems for connectivity and scheduling.
Honestly, I don't think that splitting the model up would save you any time.
Try putting the different links and disciplines on different worksets and just loading the ones you need.
If video games were made with revit we'd still be playing PONG.
I agree with Jrobker. Personally, I think the only reason to split the model up into different disciplines is if the model gets too large, say over 200Mbytes. But the only thing is, it's only to your advantage if you think of that at the start of the project because spliting it up mid-design will be too much of a hassle and something is most certain to go wrong. I've found to have 1 model with separate worksets, we even break the worksets down even further, Electrical-Power, Electrical-Lighting. The only issue with that though is making sure everyone follows the same flow of work. The strength of your model is only as strong as the weakest Revit user using it.