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Every Friday I pick a paper from the ACM Digital Library that is found by the search term +connected +2005 +"mobile device" +"user interface", and write a brief discussion of it. Why? Because it makes me actually read them.

virtual journal club: "Connected Mobile Devices UI"
Friday, May 28, 2004
Understanding mobile handheld device use and adoption 
Link

Suprateek Sarker Washington State University, Pullman, WA
John D. Wells Washington State University, Pullman, WA

Communications of the ACM archive
Volume 46, Issue 12 (December 2003)
Mobile computing opportunities and challenges
SPECIAL ISSUE: Mobile commerce opportunities and challenges
Pages: 35 - 40
Year of Publication: 2003
ISSN:0001-0782

Quote from Lead In

What appears to be missing, however, is a clear understanding of the motivations and circumstances surrounding mobile device use and adoption from the perspective of the consumers themselves. Recognizing that m-commerce cannot fulfill its potential without widespread proliferation of wireless devices and related applications [5], there is a clear need to comprehend how and why individuals (potential m-commerce consumers) adopt such devices.

Here, we describe the results of an ongoing exploratory research project (see the table here for details about the study) designed to unearth the key factors affecting the use and adoption of handheld hybrid mobile devices (devices offering both voice and data features).


My Disucssion

Starts out great promising the key factors that influence the usage of mobile devices. Proceeds to describe a methodology of interviewing around 25 students who have used a mobile device for 3 weeks, which can hardly be described as a cross-section of the population. Data collection was done through open-coding interviews. The framework described from these findings consist of what are termed "input" characteristics, which is about who the participants are, and what they are doing, and what the devices and services are like, the use process of how they explore, then adjust, and then use the devices, and what are termed "output" characteristics of how the devices are evaluated and what the levels of adoption are. Unfortunatly, this is where the article lets down: these three categories are explored, but nor real relationship between input and output is described, and thus there is no knowledge or guideline for practitioners wanting to create a certain "output" situation, a certain level or way of use, to select and tailor to "input" characteristics.

Friday, May 21, 2004
Personalized pocket directories for mobile devices 
Link

Doron Cohen IBM Research Lab, Haifa, Israel
Michael Herscovici IBM Research Lab, Haifa, Israel
Yael Petruschka IBM Research Lab, Haifa, Israel
Yoƫlle S. Maarek IBM Research Lab, Haifa, Israel
Aya Soffer IBM Research Lab, Haifa, Israel

International World Wide Web Conference
Proceedings of the eleventh international conference on World Wide Web
Honolulu, Hawaii, USA
SESSION: Mobility and Wireless Access table of contents
Pages: 627 - 638
Year of Publication: 2002
ISBN:1-58113-449-5

Abstract
In spite of the increase in the availability of mobile devices in the last few years, Web information is not yet as accessible from PDAs or WAP phones as it is from the desktop. In this paper, we propose a solution for supporting one of the most popular information discovery mechanisms, namely Web directory navigation, from mobile devices. Our proposed solution consists of caching enough information on the device itself in order to conduct most of the navigation actions locally (with subsecond response time) while intermittently communicating with the server to receive updates and additional data requested by the user. The cached information is captured in a "directory capsule". The directory capsule represents only the portion of the directory that is of interest to the user in a given context and is sufficiently rich and consistent to support the information needs of the user in disconnected mode. We define a novel subscription model specifically geared for Web directories and for the special needs of PDAs. This subscription model enables users to specify the parts of the directory that are of interest to them as well as the preferred granularity. We describe a mechanism for keeping the directory capsule in sync over time with the Web directory and user subscription requests. Finally, we present the Pocket Directory Browser for Palm powered computers that we have developed. The pocket directory can be used to define, view and manipulate the capsules that are stored on the Palm. We provide several usage examples of our system on the Open Directory Project, one of the largest and most popular Web directories.

My Discussion
This is a paper describing a very targetted strategy for creating a satisfactory user experience on a constrained device for very specific content. Even though there are very many directories out there on the web, a web directory is only one of the many structures data is organized in, and a lot of sites have minor directories compared to the amount of content that is in the documents on the site. Still, it is a good strategy to remember for specific uses. While the paper does try to create a formal model of what is casched and synced on the mobile device and what is not, there seems to be no data presented that shows that the caching strategyu is correct.

Friday, May 07, 2004
Mobile computing in next generation wireless networks 
Link

Prathima Agrawal Telcordia Technologies
David Famolari Telcordia Technologies

Workshop on Discrete Algothrithms and Methods for MOBILE Computing and Communications
Proceedings of the 3rd international workshop on Discrete algorithms and methods for mobile computing and communications
Seattle, Washington, United States
Pages: 32 - 39
Year of Publication: 1999
ISBN:1-58113-174-7

My Discussion

The contents are mainly an overview of 1G and 2G wireless phone networks, and what 3G services are starting look like. Alas, when it comes to the disruptions and problems 3G will bring, it doesn't get much deeper than, paraphrased, "There will be caching problems. And handover problems. And we need better screens." Might have been an interesting position paper at the time of the workshop for people who had no idea what the acronyms for 3G standards were going to be.

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