"horizontal modeling" (TM) samples ?

I'm looking for more PRACTICAL information on the now famous "horizontal
modeling" methodology, to get a better idea of what it means exactly.
As I understand it, it says "do a few complex features that depend on a
layout sketch" instead of "a lot of simple features". Is it correct ?

Ideally, I'd like to find 2 models of the same part, one being "HMI", to
graph their dependencies with the www.cadml.org tools. Any link ?

 

Well Philippe, as I understand it, horizontal modeling compares to bottom up
or top down modeling in the following ways... (brief example, not the
end-all interpretation)

Say you have an Assy consisting of two parts that fit together. For this
example, assume that both parts can be created from within.

Bottom Up:
- model part A, independent of part B
- model part B, independent of part A
- etc.
- create Assy inserting A and B and relating them

Top Down (also called in context):
- create Assy
- from within the Assy, create part A
- from within the Assy, create part B in context and dependent on part A

Horizontal:
- create Assy with reference geometry; layout sketches, planes, etc.,
anticipating the needs of parts A and B
- model part A in context and dependent on the reference geometry
- model part B in context and dependent on the reference geometry

As you can see, we all use a combination of these techniques anyway. Which
is why the validity of the horizontal method being patented is called into
question. Bottom up is the "safest" way to model because if a part gets
changed it doesn't automatically change any other part - it ensures the
integrity of your parts but not necessarily the assy. Top down is the
"riskiest" approach since any part can effect any other part. And
horizontal is simply a "layout sketch" methodology where you have master
reference geometry controlling your parts. It ensures the integrity of the
assy and the parts. When you want to change a part, you change the
reference geometry. The layouts control everything.

Anyone... please correct me if I'm wrong... !!

- Eddy