Talk:EAN-5

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Business Low‑importance

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Retailing Low‑importance

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Retailing To-do List:

Here are some tasks awaiting attention:

Assess : SM Lanang Premier
Copyedit : Retailing in India
Expand : :- Please expand this project's list of articles. The subcategories of Category:Retailers is also an excellent starting point.
- Expand this project's image gallery page

- More articles for expansion: Automated retail, Big-box store, Chain store, Hypermarket, Store manager
NPOV : Retail loss prevention
Photo : Retail design
Stubs : Leakage (retail), Retail geography
Verify : Department store, Discount store, Retail clerk, Retail in the Republic of Ireland, Retail media, Retail software, Suggested retail price
Other : * Please add this project's banner {{WikiProject Retailing}} to retail-related talk pages. Also, bots can be utilized to automate this task.
- Also, add biographies to the articles list.

–When a task is completed, please remove it from the list.

Technology

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Technical Specification

This link: UPC Supplemental Encodings from the Uniform Code Council (now part of the GS1 standards group) forms part of the specification for the 5 character supplemental encodings used by UPC and EAN GTIN codes. It suggests some slight differences is the barcode formation than that currently on this article, if no-one objects, I shall be amending the article to conform to this document.

It's important that I point out that I can no longer find this specification live on the internet, I have double checked it's original veracity at the wayback machine, but I cannot find a current copy on the GS1 group website. It may be available there for group members only.

The specific corrections that are required: The start code is actually 1011, rather than 101, and each character is separated by 01 rather than as the article suggests, each character having a 1 prepended and a 0 appended. The technical difference that this makes is that the article suggests that there is always a 0 at the end of the symbol, which is incorrect. Also, the description in the article that there is a checksum encoded in the pattern is not quite correct. The specification is clear that this is a parity pattern to facilitate checking, but it is not intended as a checksum of the data. David ORourke (talk) 08:11, 29 August 2008 (UTC)[reply]