Does anyone can tell me what the meaning of "D/TLD" is ?!

In Formel-Q, I see D/TLD part means safety part. Is the meaning complete? And I wanna know what the abbreviations of "D/TLD" are.

Thank you!

Sicerely yours,

Jerry Chen
China

Without seeing the entire document to get a sense of context, it is a bit difficult to say.

Often, "TLD" refers to "Top Level Design"
and, "DLD" refers to "Detail Level Design"

Hence, D/TLD might mean "either or both detail and top level design"

Do these clues help you? If not, I can't help you more without seeing the documents in their entirety.

the cover of the book is:

VOLKSWAGEN AG
Quality Capability Suppliers
Assessment Guidelines
QM-system requirements
Potential analysis
Process audit, product audit
Verification audits (D/TLD-parts)

4th completely revised edition Volkswagen AG, April 2000
The VW book to be found at this link
http://elsmar.com/Forums/showpost.p...87&postcount=15

Can you tell me more about D/TLD-parts?!
Or, if you're interested in this book, email me ok?!

[QUOTE=chenjerry]Does anyone can tell me what the meaning of "D/TLD" is ?!

In Formel-Q, I see D/TLD part means safety part. Is the meaning complete? And I wanna know what the abbreviations of "D/TLD" are.(quote)

D/TLD parts means not only safety part, bu also for regulatory parts. " D" maybe means "documentation".
hope help

the cover of the book is:

VOLKSWAGEN AG
Quality Capability Suppliers
Assessment Guidelines
QM-system requirements
Potential analysis
Process audit, product audit
Verification audits (D/TLD-parts)

4th completely revised edition Volkswagen AG, April 2000
The VW book to be found at this link
http://elsmar.com/Forums/showpost.p...87&postcount=15

Can you tell me more about D/TLD-parts?!
Or, if you're interested in this book, email me ok?!The link you gave is dead [broken.]

The fact the book was revised in April 2000 means VW was still adhering to QS-9000. Verification audit in QS-9000 refers to a return visit by an auditor to assure a previous finding has been corrected.

I am pretty sure the
"Verification audits (D/TLD-parts)"
refers to a return visit for findings related to "detail level and/or top level design parts" made by the supplier.

Your comment in your first post
In Formel-Q, I see D/TLD part means safety part. Is the meaning complete?
"Formel-Q" is German.
It refers to Volkswagen's global formula for quality.
However, it should be noted Volkswagen puts responsibility for Quality issues with its suppliers primarily in the hands of the location actually buying and receiving parts:
Quality assurance is installed decentrally at all of the Volkswagen Group´s locations. Globally, work is performed according to the same standards.
The spectrum of responsibilities of the Group´s Quality Assurance Sourcing ranges from securing projects, to supplier auditing and evaluation on to the setting of standards and procedures.Given this, the first source for answers to your questions should be the purchasing people your company deals with at VW.

In the part of your quote "I see D/TLD part means safety part"
Do you understand it to mean that the verification audit is only required for D/TLD parts which are related to safety?

I have googled and do not find any citation for the book you list. Perhaps another member of the Cove has the book and can give us some insight.

This linking to the document is working
http://elsmar.com/Forums/showpost.php?p=29987&postcount=15


D means documentation, I don't know what is TLD.
The D is ,marked on the drawing and thus there are special rules required. This is the VDA way of declaring critical characteristics etc. The whole part becomes controlled.
If you have D/TLD parts you will know it.

This linking to the document is working
http://elsmar.com/Forums/showpost.php?p=29987&postcount=15


D means documentation, I don't know what is TLD.
The D is ,marked on the drawing and thus there are special rules required. This is the VDA way of declaring critical characteristics etc. The whole part becomes controlled.
If you have D/TLD parts you will know it."I see!" shouted the blind man. Thank you, Howard, for fixing the link and making the initial download of the document available. You were very efficient.
The Volkswagen booklet (138 pages) cited says on page 41
7.6 Identification Codes for Technical Documentation
The Volkswagen Group has two identification codes that have the same
degree of importance (D and TLD).
D-Identification Code:
The D identification code is used in technical documentation, such as
drawings, TL-VW specifications, etc., if dimensions, textual information
or section numbers are associated with legislation or internal assembly
specifications. A D is entered in the basic text field (drawing header, “D-code”
or “Safety Doc.” field) to identify the compulsory verification. The
dimensions or other D features in the associated documentation have a
bar above them, with small vertical demarcation lines as shown in the
following ( ).
TLD-Identification Code:
A D is not entered in the basic text field (drawing header) in the ”Safety
Doc.” field; instead, TLD is entered. The particular TLD No. is then
entered in the ”documentation” field. This includes the features that have
to be documented and information regarding any legislation. There is no
bar located above features or regulations.
Only the main delivery specifications (TL) are listed in the TLD Volume.
If a reference is made in this TL to another TL, compulsory verification is
also applicable to this TL.Therefore, either a "D" OR "TLD" is merely a Volkswagen-specific identifier which indicates the special documentation required (primarily verification of critical characteristics and length of record-keeping) for a specific part identified by Volkswagen as being Life-Health-Safety related. It also designates parts which are mandated for such record-keeping by some applicable legislation.

The main point is to ask Volkswagen if this document (nearly 4 years old) is still valid or if it has been superseded by something more recent.

I know that VW are still using this and so are other German based companies.

See http://elsmar.com/Forums/showthread.php?t=8063

The VW book is in fact an almost word for word copy of the VDA standards

The Volkswagen booklet (138 pages) cited says on page 41
Well done, when I searched I did not find this, your persistence is admirable

"I see!" shouted the blind man. Thank you, Howard, for fixing the link and making the initial download of the document available. You were very efficient."
When I checked the link it worked. I can't claim the credit