User interface

About: User interface is a research topic. Over the lifetime, 85402 publications have been published within this topic receiving 1728377 citations. The topic is also known as: UI & input method.

Method and apparatus for use of rotational user inputs

Abstract: Improved approaches for users of computing devices to interact with graphical user interfaces are described. According to one aspect, a rotational user action supplied by a user at a user input device is transformed into linear action with respect to a graphical user interface. According to another aspect, a portion of an extended list of items is displayed by a graphical user interface and, through rotational user actions at a user input device, the portion of the list being displayed can be varied with welcomed ease of use. Although the type of computing device can vary, the improved approaches are particularly well-suited for use with a portable media player.

Writing effective use cases

Abstract: which centres on responding to contingencies, there is no digression into languages for detecting contingencies-the reader will need to look to the alarm correlation literature, or to event monitoring frameworks such as the University of Cam-bridge's Cambridge Event Architecture (CEA) and Imperial College's Generalized Event Monitor (GEM), here. In order to integrate event detection with planning though, these event detectors will need extensions for event criticality, event probability , response utility determination and scheduling, and resource allocation. The final chapters of the book review some behaviour models , which characterize the underlying attitudes that may influence planning, such as anti-authorative, impulsive, macho, and liability conscious behavioural attitudes. The authors also explain how computer-generated plans may be used to validate human plans and, similarly, how a comparison to human plans may shed light on the suitability and accuracy of a particular computational approach. The target audience for this book is ambitiously described as software managers, higher level managers, project managers, executives, CIO's, managers, entrepreneurs, and software developers. However, the tone of the book is predominantly academic and theoretic in nature, with frequent excursions into mathematical formulae that are probably not of interest to practictioners. Firstly, the authors indulge in a long-winded literature survey of planning systems and provide proofs of necessity , consistency, and optimality of their framework, that practitioners will no doubt find tiresome as the book is given the flavour of a PhD thesis, albeit a thorough and rigorous one. While the book provides comprehensive coverage of planning approaches and prior research, the book tends to be repetitive and long-wlnded. The book's discussion of the Maruti real-time operating system, though applicable, is not likely to be of interest to the intended audience as Maruti is not a pervasive technology in industry. Finally, the use of academic parlance and frequent references to context free grammars, non-terminals, and NP-completeness is ill-suited to the target audience, who expect a straightforward, brief, and direct explanation of critical concepts, and who will find themselves frequently bored by the many tedious academic expositions. Whilst, as claimed in the book's blurb, the techniques described in the book could foreseeably apply to domains as diverse as web-based shopping assistants, the authors do not provide any practical illustrations of this, constraining their applications predominantly to a recurring examples from the aircraft flight planning domain. The enticing but elusive prospect of integrating real-time problem solving languages with existing Internet …

The Mobile Sensing Platform: An Embedded Activity Recognition System

Abstract: Activity-aware systems have inspired novel user interfaces and new applications in smart environments, surveillance, emergency response, and military missions. Systems that recognize human activities from body-worn sensors can further open the door to a world of healthcare applications, such as fitness monitoring, eldercare support, long-term preventive and chronic care, and cognitive assistance. Wearable systems have the advantage of being with the user continuously. So, for example, a fitness application could use real-time activity information to encourage users to perform opportunistic activities. Furthermore, the general public is more likely to accept such activity recognition systems because they are usually easy to turn off or remove.

WYSIWIS revised: early experiences with multiuser interfaces

Abstract: WYSIWIS (What You See Is What I See) is a foundational abstraction for multiuser interfaces that expresses many of the characteristics of a chalkboard in face-to-face meetings. In its strictest interpretation, it means that everyone can also see the same written information and also see where anyone else is pointing. In our attempts to build software support for collaboration in meetings, we have discovered that WYSIWIS is crucial, yet too inflexible when strictly enforced. This paper is about the design issues and choices that arose in our first generation of meeting tools based on WYSIWIS. Several examples of multiuser interfaces that start from this abstraction are presented. These tools illustrate that there are inherent conflicts between the needs of a group and the needs of individuals, since user interfaces compete for the same display space and meeting time. To help minimize the effect of these conflicts, constraints were relaxed along four key dimensions of WYSIWIS: display space, time of display, subgroup population, and congruence of view. Meeting tools must be designed to support the changing needs of information sharing during process transitions, as subgroups are formed and dissolved, as individuals shift their focus of activity, and as the group shifts from multiple parallel activities to a single focused activity and back again.