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.

Human-computer interaction using eye-gaze input

Abstract: A description is given of Erica, a computer workstation with a unique user interface. The workstation is equipped with imaging hardware and software, which automatically record a digital portrait of the user's eye. From the features of the current portrait, the interface calculates the approximate location of the user's eye-gaze on the computer screen. The computer then executes commands associated with the menu option currently displayed at this screen location. In this way, the user can interact with the computer, run applications software, and manage peripheral devices-all simply by looking at an appropriate sequence of menu options displayed on the screen. The eye-gaze interface technology, its implementation in Erica, and its application as a prosthetic device are described. >

Paper Prototyping: The Fast and Easy Way to Design and Refine User Interfaces

Abstract: Do you spend a lot of time during the design process wondering what users really need? Do you hate those endless meetings where you argue how the interface should work? Have you ever developed something that later had to be completely redesigned? Paper Prototyping can help. Written by a usability engineer with a long and successful paper prototyping history, this book is a practical, how-to guide that will prepare you to create and test paper prototypes of all kinds of user interfaces. You'll see how to simulate various kinds of interface elements and interactions. You'll learn about the practical aspects of paper prototyping, such as deciding when the technique is appropriate, scheduling the activities, and handling the skepticism of others in your organization. Numerous case studies and images throughout the book show you real world examples of paper prototyping at work. Learn how to use this powerful technique to develop products that are more useful, intuitive, efficient, and pleasing: * Save time and money - solve key problems before implementation begins * Get user feedback early - use it to focus the development process * Communicate better - involve development team members from a variety of disciplines * Be more creative - experiment with many ideas before committing to one *Enables designers to solve design problems before implementation begins *Five case studies provide real world examples of paper prototyping at work *Delves into the specifics of what types of projects paper prototyping is and isn't good for. Table of Contents Foreword by Jakon Nielsen Acknowledgments Part I-Introduction to Paper Prototyping Chapter 1: Introduction Chapter 2: Case Studies Chapter 3: Thinking about Prototyping Chapter 4: Making a Paper Prototype Part II-Process: Conducting a Usability Study with a Paper Prototype Chapter 5: Planning a Usability Study with a Paper Prototype Chapter 6: Task Design Chapter 7: Preparing the Prototype Chapter 8: Introduction to Usability Test Facilitation Chapter 9: Usability Testing with a Paper Prototype Chapter 10: Observers Chapter 11: Data: Capturing, Prioritizing, and Communicating Part III-Deciding Whether to Use Paper Chapter 12: What Paper Is (and Isn't) Good For Chapter 13: The Politics of Paper Prototyping Chapter 14: When to Use Paper Part IV-Broadening the Focus Chapter 15: Examples of User-Centered Design Chapter 16: Final Thoughts References Index Figure Credits About the Author

The battle against phishing: Dynamic Security Skins

Abstract: Phishing is a model problem for illustrating usability concerns of privacy and security because both system designers and attackers battle using user interfaces to guide (or misguide) users.We propose a new scheme, Dynamic Security Skins, that allows a remote web server to prove its identity in a way that is easy for a human user to verify and hard for an attacker to spoof. We describe the design of an extension to the Mozilla Firefox browser that implements this scheme.We present two novel interaction techniques to prevent spoofing. First, our browser extension provides a trusted window in the browser dedicated to username and password entry. We use a photographic image to create a trusted path between the user and this window to prevent spoofing of the window and of the text entry fields.Second, our scheme allows the remote server to generate a unique abstract image for each user and each transaction. This image creates a "skin" that automatically customizes the browser window or the user interface elements in the content of a remote web page. Our extension allows the user's browser to independently compute the image that it expects to receive from the server. To authenticate content from the server, the user can visually verify that the images match.We contrast our work with existing anti-phishing proposals. In contrast to other proposals, our scheme places a very low burden on the user in terms of effort, memory and time. To authenticate himself, the user has to recognize only one image and remember one low entropy password, no matter how many servers he wishes to interact with. To authenticate content from an authenticated server, the user only needs to perform one visual matching operation to compare two images. Furthermore, it places a high burden of effort on an attacker to spoof customized security indicators.

Developments in the CCP4 molecular-graphics project

Abstract: Progress towards structure determination that is both high-throughput and high-value is dependent on the development of integrated and automatic tools for electron-density map interpretation and for the analysis of the resulting atomic models. Advances in map-interpretation algorithms are extending the resolution regime in which fully automatic tools can work reliably, but at present human intervention is required to interpret poor regions of macromolecular electron density, particularly where crystallographic data is only available to modest resolution [for example, I/σ(I) < 2.0 for minimum resolution 2.5 A]. In such cases, a set of manual and semi-manual model-building molecular-graphics tools is needed. At the same time, converting the knowledge encapsulated in a molecular structure into understanding is dependent upon visualization tools, which must be able to communicate that understanding to others by means of both static and dynamic representations. CCP4mg is a program designed to meet these needs in a way that is closely integrated with the ongoing development of CCP4 as a program suite suitable for both low- and high-intervention computational structural biology. As well as providing a carefully designed user interface to advanced algorithms of model building and analysis, CCP4mg is intended to present a graphical toolkit to developers of novel algorithms in these fields.