問8
頻出度★★☆
POSシステムなどで商品を一意に識別するために，バーコードとして商品に印刷されたコードはどれか。
平成21年度 春期 ITパスポート試験 問8
ストラテジ系法務 › 標準化関連
This question's explanation and your answers so far.
解説
問 8
- ア
正解 The correct answer is ア: JAN. A JAN code (Japanese Article Number) is Japan’s product identification number. It consists of a country code, a manufacturer code, an item code, and a check digit, and it is printed on the product package as a barcode (a one-dimensional symbol). When a scanner at a POS system register reads this barcode, the product is uniquely identified, and the unit price and product name can be looked up and sales and inventory data collected (item-level management) automatically. Only JAN matches the condition stated in the question, “the code printed on products as a barcode to uniquely identify them in POS systems and similar applications”. JAN is also compatible with the international standards EAN/GTIN: the standard type has 13 digits and the shortened type has 8 digits.
Incorrectイ
JAS stands for the Japanese Agricultural Standard, a national standard for the quality and production methods of agricultural, forestry and fishery products, foods, and the like. Foods that meet the criteria may display the JAS mark, but that is a certification mark guaranteeing quality; it is not a number that uniquely identifies an individual product, and it is not used as a barcode for POS.
Incorrectウ
JIS stands for the Japanese Industrial Standards (in Japanese now 日本産業規格, formerly 日本工業規格), national standards that define the shape, dimensions, quality, test methods and so on of industrial products. The specification of the JAN code itself is indeed laid down in JIS, but JIS is the name of a body of standards; it is not a code printed as a barcode in order to identify each individual product.
Incorrectエ
A QR code is a standard for two-dimensional codes that hold information in both the vertical and horizontal directions, and it can store a large amount of information such as URLs and text strings. It is not the “product identification code printed on a product as a barcode (a one-dimensional symbol)” that the question refers to; it is a term for a way of representing a code (a symbology). What has been used as standard for identifying products at POS registers is the barcode of the JAN code, not the QR code.
ここがポイント
- A JAN code is Japan’s product identification number. It is printed on products as a barcode and is the basis of item-level management (collecting sales and inventory data) in POS systems. The standard type has 13 digits and the shortened type has 8 digits, made up of a country code + a manufacturer code + an item code + a check digit.
- Tell the similar abbreviations apart: JAN = a product identification code; JAS = the Japanese Agricultural Standard (a quality standard for food); JIS = the Japanese Industrial Standards (national standards for industrial products); QR = a symbology for two-dimensional codes. The key point is not to confuse the name of a standard with a number that identifies a product.
用語