問65
頻出度★☆☆
OSS(Open Source Software)に関する記述のうち, 適切なものはどれか。
平成27年度 秋期 ITパスポート試験 問65
テクノロジ系ソフトウェア › オープンソースソフトウェア
This question's explanation and your answers so far.
解説
問 65
Incorrectア
As its name open source indicates, disclosing the source code to the public is OSS's greatest characteristic. Software whose source code is not disclosed is proprietary software, so this is wrong as a description of OSS.
Incorrectイ
As a rule, an OSS license permits redistribution including the source code (free redistribution is one of the definitions of open source). The statement that it must not be redistributed contradicts the idea of OSS and is wrong.
Incorrectウ
OSS is generally provided as is with no warranty, and its security and behavior are not guaranteed by the developers. Use is at one's own risk in principle, so the statement that security is guaranteed by the developers is wrong.
- エ
正解 OSS (Open Source Software) is software distributed by its author, who retains the copyright while attaching a license that permits disclosing, modifying, and redistributing the source code. Because it can often be used freely and at no cost, it is easily misunderstood as having its copyright waived; in reality the copyright is not waived, and the license (usage permission) sets the rules for use. Therefore choice エ, which states that the copyright is not waived, is appropriate.
ここがポイント
- Definition of OSS (Open Source Software): the source code is disclosed, and modification and redistribution are freely permitted. However, it is generally provided as is with no warranty.
- The key point is that OSS does not waive its copyright (enter the public domain); rather, the author retains the copyright and grants permission to use it under license conditions.
用語