問11
頻出度★★☆
X さんは, ディジタルカメラで撮影した画像を記録媒体に保管し, その記録媒体をプリンタに差し込んで印刷を行った。その際, ディジタルカメラのメーカを意識することなく印刷することが可能であった。このことは, 画像データに関するどのような技術的前提によるものであるか。
平成31年度 春期 ITパスポート試験 問11
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 11
Incorrectア
Commoditization refers to a market phenomenon in which the differences in function or quality among products on the market disappear, so that products from any manufacturer become much the same, like generic goods (everyday commodities), leading to price competition. This is a concept about the state of products or the market, and it does not explain the technical premise that lets image data be read and written across manufacturers, so it is wrong.
Incorrectイ
Networking refers to connecting devices to one another over a communication network so that they can exchange data. In this problem, the storage medium is physically inserted into the printer to print, and the involvement of a communication network is not assumed. Moreover, even if the devices were connected over a network, they would not be usable regardless of manufacturer unless the data format were common, so it is wrong as a premise for guaranteeing compatibility.
- ウ
正解 The correct answer is ウ, Standardization. Standardization means unifying the format or specification of data into a common rule (a standard). If the image data of a digital camera is recorded in a standardized format (for example, common standards such as JPEG, DCF, or Exif), then any device that supports that format can read and process the data in the same way regardless of the manufacturer. Therefore, an image taken and saved with one manufacturer's camera can be printed even when it is inserted into another manufacturer's printer, without being aware of the difference in manufacturer. The technical premise that makes this state of mutual usability across different manufacturers (interoperability and compatibility) possible is precisely the standardization of the image data.
Incorrectエ
Ubiquity refers to the spread throughout society of an environment in which computers and information devices can be used anytime and anywhere. It is a concept about the expansion of usage scenarios, and it does not serve as the basis for image data being read and written in common across devices of different manufacturers, so it is wrong.
ここがポイント
- Standardization = unifying data formats and specifications into a common standard. This ensures interoperability and compatibility even between devices of different manufacturers, so data can be exchanged without being aware of the manufacturer.
- There are two ways a standard is established: the de facto standard, which is set by actual widespread adoption in the industry, and the de jure standard, which is formally set by public bodies or similar organizations.
用語