[HandoverDocumentation IDTA-02004 2.0.1] Table 1: the English ClassNames for 02-03 and 03-01 do not match the German in the same row

[dev365code]

Hello. A question about Table 1 of IDTA 02004 (Handover Documentation), from
someone building tooling that has to decide which class names to accept.

The table gives each VDI 2770 document class an English and a German name. For
two rows the two do not describe the same thing:

ClassId	German in Table 1	English in Table 1
02-03	Bauteile	Assemblies	Bauteile are components or parts; assemblies would be Baugruppen
03-01	Montage, Demontage	Commissioning, decommissioning	Montage/Demontage is assembly and disassembly; commissioning and decommissioning would be Inbetriebnahme/Außerbetriebnahme

That can be checked inside Table 1 itself, without reference to anything else.

It matters because the other freely available rendering of the same table — the
VDI 2770 reference implementation, DigitalDataChainConsortium/vdi2770, whose
Constants.java describes its English names as "defined in VDI 2770 guideline"
— reads those two rows as Components and Assembly, disassembly, matching the
German.

This is not a claim that Table 1 is wrong and the reference implementation is
right. On two other rows the reference implementation is the one that departs
from the German, and Table 1 is closer:

ClassId	German (both agree)	Table 1	reference implementation
02-03	Bauteile	Assemblies	Components
02-04	Zeugnisse, Zertifikate, Bescheinigungen	Certificates, declarations	Certificates
03-01	Montage, Demontage	Commissioning, decommissioning	Assembly, disassembly
03-04	Inspektion, Wartung, Prüfung	Inspection, maintenance, testing	Inspection, maintenance
04-01	Vertragsunterlagen	Contract documents	contract documents

The twelve German names are identical in both sources. Five of the English ones
differ, and each source is the closer reading on two of them — which is what
made me think the difference is translation rather than error on either side.

Table 1's English has also been stable across IDTA 02004 v1.2 (2023-03),
v2.0.1 (2025-11) and IDTA 02035-2 (2026-02), so this is a question about the
table rather than a typo in one edition.

The question: are Table 1's English names quoting the English edition of
VDI 2770 Blatt 1:2020, or are they an independent translation for this submodel?

It changes what an implementer should do. VDI 2770 tooling that validates
ClassName against its own list rejects a document carrying Table 1's English
for 02-03, 02-04, 03-01 and 03-04 — four of twelve — so someone populating a
Handover Documentation submodel from an existing VDI 2770 container, or the
reverse, has to pick one spelling and be wrong on one side.

A smaller, related question: would recording the ClassId and the German name
as the identifying pair be worth considering? Those are the parts both published
sources agree on, and they are what an implementation can match on safely today.

I can supply the full twelve-row comparison as a data file if that is useful.

[Rudra-sandeep]

@dev365code Thank you for raising the issue we will fix and release a bug fix version for this SMT