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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, April 09, 2004
UbiCollab: collaboration support for mobile users 
Link

Monica Divitini IDI, NTNU, Trondheim, Norway
Babak A. Farshchian Telenor R&D, Trondheim, Norway
Haldor Samset Telenor R&D, Trondheim, Norway

Symposium on Applied Computing
Proceedings of the 2004 ACM symposium on Applied computing
Nicosia, Cyprus
SESSION: Mobile computing and applications (MCA)
Pages: 1191 - 1195
Year of Publication: 2004
ISBN:1-58113-812-1

Abstract:
Shared workspaces have emerged as one of the most successful applications of computer supported cooperative work (CSCW). Important aspects of shared workspaces are presence and awareness information, flexible sharing of work material, and support for communication among group members. One of the shortcomings of existing shared workspaces is their lack of support for mobility. In this paper we will discuss the need for mobile shared workspaces as well as an experimental platform for ubiquitous collaboration and a number of shared workspace implementations for both formal and informal collaboration.

My Discussion:
This papwer describes the conceptual architecture of a collaborative work system in which users can create tasks, create presence-enhanced buddy-lists, share task-related documents between the buddies, and use multiple channels to communicate. The structure of the paper justifies the flexibility of the design by introducing a scenario of mobile collaboration using desktops and handhelds. However, the writers engage in some false advertising: while in the first section they promise to "address the challenges related to developing mobile collaboration environments", the actual description of the scenario or resulting system barely reflects anything about the constraints of working with current mobile devices. It seems the handsets the UbiCollab creators are targetting have no bandwidth problems, easily support running a larger external screen to show downloaded documents while also making calls, sending SMSes, checking up on people's presence, and being logged into the server, without actually having any UI issues of managing all this, or connectivity issues of dropped voice or data connections, which are the first things that I think of when addressing the challenges of developing environments to run on mobile phones.
I think I want one of the handsets the UbiCollab people are using.

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