【作者】 吴晨俊； 史元春； 索岳；

【Author】 Chenjun Wu, Yuanchun Shi, Yue Suo Key Laboratory of Pervasive Computing, Ministry of Education Department of Computer Science and Technology, Tsinghua University Beijing, 100084, China

【机构】 清华大学计算机科学与技术系普适计算教育部重点实验室；

【摘要】 本文针对大幅面多用户桌面的界面管理问题,通过需求分析、界面建模、原型实现与用户研究四个阶段的研究,提出了一个完整的界面管理方案。本文首先基于对交互式桌面水平显示、直接输入以及多用户使用三个特性的分析,提出了桌面界面管理中输入管理、布局管理、权限管理和冲突管理四个方面的新需求,这些显著区别于台式计算机上的界面管理。在此基础上,本文设计了层次式的桌面交互界面模型,它自顶向下由处理多用户输入的输入管理层、控制交互界面的对象管理层、以及基于树状结构组织的桌面对象层组成。进而,本文实现了一个面向会议研讨场景、用以取代传统会议桌面的多用户桌面界面管理系统uMeeting,并开展了实际的用户研究。四组测试者通过uMeeting系统分别完成了一次旅行规划的任务,观察和问卷结果表明本文设计并实现的界面管理系统可以有效的帮助用户完成桌面交互任务。更多还原

【Abstract】 Interactive tabletop is now receiving wide publicity for its natural setting for collaboration. However, few works have carefully studied the user interface management on tabletop, and many problems are still to be resolved. In this paper, we carry out a systematic research on tabletop UI management, and develop a system to facilitate user interaction on tabletop. Firstly, based on the analysis of tabletop’s horizontal display, multi-user usage and natural input features, we identify four fundamental requirements for tabletop UI management: input management, layout management, conflict management and authority management, which are significantly different from UI management on desktops. Secondly, we design a model for tabletop UI management. It contains a hierarchical structure for organizing surface elements, Object Manager for multi-user interface controlling, and Input Manager for processing concurrent multimodal inputs. Thirdly, we implement a system, uMeeting based on our model, which is designed for meeting scenario. It provides users with portable work areas that sit on the tabletop, and allows them to view and edit materials, group and organize sets of objects, share resources and idea, and do collaborative work. At last, we present observations and questionnaire results of a study, where four groups carry out a travel planning task using uMeeting. The results show that people have similar behaviors as they do on traditional tables, and suggest that the UI management technique we present can help people complete individual or collaborative tasks effectively on tabletop.更多还原