Spatial parsers augment spatial hypermedia systems by letting the computer perceive the informal -- but visually apparent -- groupings formed by humans working with a spatial hypermedia tool. A number of research systems implementing 2D spatial parsing have been described in recent years. This position paper describes an implementation of a tailorable 3D spatial parser for the Topos system: a 3D information organization tool for use on desktops, interactive whiteboards and tables. A number of issues pertaining to 3D parsing as opposed to 2D parsing are discussed.

Spatial parsers augment spatial hypermedia systems by letting the computer perceive the informal -- but visually apparent -- groupings formed by humans working with a spatial hypermedia tool. A number of research systems implementing 2D spatial parsing have been described in recent years. This paper extends spatial parsing to 3D and describes an implementation of a tailorable 3D spatial parser for the Topos system: a 3D information organization tool for use on desktops, interactive whiteboards and tables.

Current research in the area of ubiquitous computing environments is shifting the focus of human computer interaction away from traditional interfaces such as keyboards and mice and towards more natural modes of interaction such as speech and gestures. An important environment that can benefit from this trend is the enterprise-enabled workspace but this domain has not been investigated in any great detail in current literature. Enterprise work environments require support across a range of activities that include meetings, strategic planning, remote coordination (command and control) and collaborative work activities such as software development. This project investigates the use of architectural frameworks as the infrastructure for next generation, enterprise-enabled, ubiquitous workspaces. "LiveSpaces", in the UNISA e-World laboratory, is an example of a research initiative to build an experimental, adaptive, context aware environment and is used as a basis to explore some of the issues involved in building future, collaborative work spaces. A meeting room scenario is employed to identify some of the attributes involved in underpinning these future workspaces. An experimental, hybrid software framework is built which involves integrating MIT's MetaGlue, a multi-agent, ubiquitous computing infrastructure, with DSTC's Open Distributed Services Infrastructure (ODSI), an enterprise enabled architecture that has a messaging based enterprise bus and a workflow focus. In addition to building the experimental infrastructure, the other major component in this thesis devotes itself to exploring the characteristics of enterprise-enabled workspaces and highlighting how MetaGlue and ODSI have supported these characteristics. Time was taken to examine the areas where the infrastruc...