8. ユーザビリティ
2018/3/8 ICSS/SPT研究会 8
ISO 9241-11
JIS Z 8521
“Extent to which a product can be used by specified users to achieve
specified goals with effectiveness, efficiency and satisfaction in a specified
context of use.”
“ある製品が、指定された利用者によって、指定された利用の状況下で、
指定された目的を達成するために用いられる際の、有効さ、効率及び利用
者の満足度の度合い”
9. ユーザビリティ
2018/3/8 ICSS/SPT研究会 9
“Usability is a quality attribute that assesses how easy user interfaces are to
use.”
Jakob Nielsen
“Usability is defined by 5 quality components:”
Learnability (学習しやすさ)
Efficiency (効率)
Memorability (記憶しやすさ)
Error (エラー)
Satisfaction (満足)
https://www.nngroup.com/articles/usability-101-introduction-to-usability/
10. ユーザビリティとセキュリティ
2018/3/8 ICSS/SPT研究会 10
A. Whitten and J.D. Tygar
“Why Johnny Can't Encrypt: A Usability Evaluation of PGP 5.0”
USENIX Security ‘99
https://www.usenix.org/conference/8th-usenix-security-symposium/why-johnny-cant-encrypt-usability-
evaluation-pgp-50
12. 落とし穴文書、あるいはSchecter文書
2018/3/8 ICSS/SPT研究会 12
Stuart Schechter
"Common Pitfalls in Writing about Security and Privacy
Human Subjects Experiments, and How to Avoid Them"
https://www.microsoft.com/en-us/research/publication/common-pitfalls-in-writing-about-security-and-privacy-
human-subjects-experiments-and-how-to-avoid-them/