Standard Parts System-Under Construction

This is an attempt at standardising parts for Autocad Users.

Anyone reading this may wonder quite rightly that there is a huge inconsistency
on my part with this: I have provided quite a few autocad blocks at the front end
of this site, but here, I am going to present these blocks all over again.
The only difference being is that they have a different file name.

The other is that this will be an enormous job, so I am only going to make a 
token start on it here. 

I have a few ideas that may be close to the final form.

Any sensible parts numbering system must have the following attributes:

1. Consistency
2. The ability to be able to look at a part number and deduce what it is.
3. Sortability: If several parts were in one directory, would explorer sort them logically?
4. Brevity. It should be just enough information to make the part unique. A series of abbreviations would be listed.
5. Allow for assemblies.
6. Allow for different files of the same part. For instance DXF and DWG.
7. Ideally use i-drop technology to allow users to download straight from the internet.
8. The second to last item would be a description code for what the drawing is-for instance
   a dimensioned drawing might have a code of DI, a 3D solid item would have 3D as a code.
9. Have the issue in the part number. This would be the last item.
10.Allow for and encourage items that are the same but have different levels of detail.
   For instance, you would not want to have a flange with all the holes drawn in clogging up a 
   plant layout.

I propose the following system to meet the above criteria:

1. First letter-P or A which stands for Part or Assembly
2. Second bunch of letters-An abbreviation of the first four letters of what the item is, in general.
3. Next, the size, if the item has a size. If it has say length and width and thickness, they would be in that order.
   If there was only say a width, then the sequence would have to be -0-600-0- ie 600mm wide.
4. Next, the specific name of the item.
5. Next, any standard that it is used, for instance, ANSI or BS (British Standard).This field is optional.
6. Next, any usage that the part is normally destined for, for instance a footplate might be intended for
   use with a 100 x 100 Post. This field is optional.
7. Next any other distinguishing features, eg 14H might stand for having a 14 dia holes.
   If abbreviations are not available, use full english words here.
8. The third to last item would be a description code eg 3D.
9. The second to last item would be the level of detail, ie H for High Detail, or L for low detail 
10. The last item is the issue, for example A or B.

So for instance a footplate for a stair might be:
P-STAI-200-100-10-FP-14H-3D-H-A.dwg

Where:

P		=It is a Part.
STAI		=It is to do with stairs.
-200-100-10	=the length,width and thickness.
FP		=It is a Foot Plate.
14H		=The hole in it is 14mm.
3D		=It is a 3D solid.
H		=It is drawn in High detail.
A		=This is the issue.