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Including document numbers in dash-number part numbering scheme
At my company, we're taking a look at our part (and document) numbering systems, and I'd like to know what others here think about the topic.
I've been reading Watt's book (Engineering Documentation Control Handbook), where he advocates for a dash number system. My understanding is that it would look something like this (please correct me if I understand this wrong!):
- 123456 is the base item number and does not have any significance
- 123456-00 = Drawing
- 123456-01 = released part
- 123456-02,-03,-04 = could be a variants (color, material), or non-interchangeable part revisions.
This seems like a reasonable approach. However, I have a few questions. What if I also have other specification documents I need to tie to this particular part (3D printer settings, material specs, etc.)? I suppose I could give those documents a dash-number. But, if I have a spec that is used for multiple parts, I'd want it to have its own document number. It seems like this inconsistency would be confusing over time.
On the other hand, some people recommend having a complete non-significant part number. In those cases, how do you manage part variants and document references? Do you just create cross-references on the drawing as necessary?