Mobile phone ownership and usage among pre-adolescents
Telematics and Informatics
Communicating intimacy one bit at a time
CHI '05 Extended Abstracts on Human Factors in Computing Systems
IEEE Pervasive Computing
A large scale study of text-messaging use
Proceedings of the 12th international conference on Human computer interaction with mobile devices and services
What's up with whatsapp?: comparing mobile instant messaging behaviors with traditional SMS
Proceedings of the 15th international conference on Human-computer interaction with mobile devices and services
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This paper presents a study on privacy and secrecy requirements that users feel while in the presence of other people. They are viewed as issues of a social activity and pertain to the desire that the content of messages or the act of writing or reading them is not perceived by others. We assess the needs for privacy according to the message's themes and acquaintance type with the recipient. We also present and discuss our findings considering user strategies in coping with the required privacy using both a quantitative and a qualitative approach. The study results show clearly the need to consider those requirements in the design of messaging applications for mobile devices. Circa 50% of the messages analyzed required privacy on the act of writing/reading. The reasons are multifaceted and vary according to the addressees and the content type reaching 70% for specific cases. We close the paper, with a proposal of a personal, multimodal and inconspicuous communication framework, which not only allows users to define their vocabulary, but also entry and output methods from a range of different modalities.