平成29年度春期 ITパスポート試験問33

This question's explanation and your answers so far.

問33

頻出度★★☆

POS システムや SCM システムに JAN コードを採用するメリットとして, 適切なものはどれか。

出典　平成29年度春期 ITパスポート試験問33

解説

問 33

Incorrectア
The JAN code is an identification number that is printed as a barcode and read optically; it was not created on the premise of being used on IC tags (RFID). The claim that it takes advantage of the performance of IC tags does not match the characteristics of the JAN code.
Incorrectイ
What the JAN code represents is only a numeric product identification number; it has no function to represent images. The claim that it can be linked with product images is incorrect.
ウ
正解 The JAN code is based on international distribution standards, and a management authority assigns each company its own unique code and manages them centrally. Therefore, even products from different companies do not have duplicate codes, and uniqueness is guaranteed. Thanks to this property, your own POS and SCM systems can handle the products of many companies, including other companies, in a unified way without worrying about code collisions. Therefore, ウ is correct.
Incorrectエ
The number of digits of the JAN code is fixed by the standard specification (13 digits for the standard type and 8 digits for the shortened type), so a company cannot set the length arbitrarily. The claim that the length can be freely decided is incorrect.

ここがポイント

The JAN code is a standardized product identification number (barcode) used in common across the distribution industry; through centralized management by a management authority, there is no code duplication among companies and uniqueness is guaranteed.
A characteristic of the JAN code is that it represents only digits and its number of digits is fixed by the specification, which is different from IC tags (RFID), image representation, or arbitrary-length setting.

用語

解答問33ウ