3D Web is a potential platform for publishing and distributing 3D visualizations that have proven useful in enabling the participation of the general public in urban planning. However, technical requirements imposed by detailed and rich real-world plans and related functionalities are demanding for 3D web technologies. In this paper we explore the maturity of modern 3D web technologies in participatory urban planning through two real-world case studies. Applications built on Unity-based platform are published on the web to allow the general public to create, browse and comment on urban plans. The virtual models of seven urban development sites of di erent visual styles are optimized in terms of download sizes and memory use to be feasible on browsers used by the general public. We report qualitative feedback from users and present a technical analysis of the applications in terms of download sizes, runtime performance and memory use. We summarize the ndings of the case studies into an assessment of the general feasibility of modern 3D web technologies in web-based urban planning.

No abstract

In order to improve the user experience in a large touchscreen, this research introduces gesture interaction into wall-sized touchscreen. According to the distance between user and display, we create two interaction modes for touch and body gesture respectively. Challenges encountered and prospects for further improvement are also investigated.

Web information systems engineering means a collection of sound principles, methods, techniques and tools for developing Web-based information systems, which differ from traditional information systems in their unique technological platform and design philosophy. Key features of Web information systems engineering beyond traditional and object-oriented information systems development include emphasis on user navigation, the multilevel interactivity of the environment, and the advanced hypertext functionality in target information systems. A starting point for designing and modeling Web information systems is that these are essentially hypertext information systems. This chapter will specify requirements for Web information systems engineering methodologies from the viewpoints of hypermedia communication environments, adaptive hypermedia systems, and mobile hypermedia.

No abstract