I Knew ..it's been discussed ... that why I Wrote a good tool !!!
a tool can accept different type of accessories and you can define them , I mean for example the raised Floor have its own reference line ... and when I make a Electrical Floor Box for it, I can adjust it 5 mm above the reference line . I mean a Tool you can define different Type of pedestal for for it ( in case of raised floor ) ...Curtainwall and Archipanel can be used in schematic way ... I mean a real Tool ...
Up to now ..I used different ways 1) slab - 2) curtain wall 3) archi panel
and none of them are really good enough ...
In the case of simple - Housing ... Slab way is nice ...But for Official or Commercial which their ceiling have their own problems with MEP Stuff ...
A good tool can be very useful for BIM ... not a simple modeling .
thanks for your concern Aaron