chines to participate in presentations and other events mediated by a linked-server network. Most of the available bandwidth is dedicated to audio delivery and custom sound effects to help capture the mood of live events. After describing the design philosophy and implementation of Stadium, we consider its niche in the design space of organisational knowledge systems. With very low capture overheads, it enables organisations to make better use of the invaluable resource that can be found in expert speakers' presentations, and makes it easier for any staff member or team to share their expertise in a small, medium or large setting. We briefly consider its possible impact on working practices, both with respect to staff as knowledge consumers, and as knowledge creators. Introduction KMi Stadium is an experiment in very large scale telepresence. We are enhancing existing media and developing new media intended to give participants a sense of `being there' at events of all

Abstract 1 Much organisational knowledge is multidisciplinary, hard to formalise, and generated in discussions with competing viewpoints. Knowledge Management (KM) technologies need to be able to capture and share such knowledge. This short paper begins by characterising ‘knowledge work’—are there salient features that we can identify? Next, an approach is described by which teams analyse and discuss problems, building graphical argument spaces as competing ideas are debated. Hypermedia groupware provides a way to embed ideas, decisions and rationale in their conversational context, and with other work artifacts such as reports, sketches and simulations. The orientation of this work emphasises the human dimensions to technologies for supporting organisational memory and expertise. The discussion seeks to situate this approach in relation to other KM approaches by proposing three questions that seek to clarify the interdependencies between economics, technologies, work practices, and the responsibilities of modelling and managing knowledge.

KnowPort is an action-oriented personal tool for knowledge tracing which assists professional individuals in the task of explicitely self-managing their personal knowledge resources (knowledge portfolio) with the aim of supporting them as individuals in meeting the challenge of working with a collective (team, organisation) knowledge management infrastructure for sharing knowledge. The KnowPort kernel implements a new method for obtaining a knowledge survey based on a radical constructivist view of knowledge. Its goal is to support the knowledge worker in producing different traces of knowledge relevant events in her work and thus focusing on her process of knowledge construction.

KMi Stadium is a Java-implemented medium for hosting distributed events on a very large scale on the Internet (or an Intranet), allowing thousands of simultaneous participants even over 28.8Kbps dial-up modems. Stadium makes available as a reusable resource audio, coordinated visuals, and secondary resources such as relevant documents, demonstrations and Web sites. Client-based desktop computers and set-top boxes with appropriate browsers can download custom applets which enable the client machines to participate in presentations and other events mediated by a linked-server network. Most of the available bandwidth is dedicated to audio delivery and custom sound effects to help capture the mood of live events. After describing the design philosophy and implementation of Stadium, we consider its niche in the design space of organisational knowledge systems. With very low capture overheads, it enables organisations to make better use of the invaluable resource that can be found in expert speakers ’ presentations, and makes it easier for any staff member or team to share their expertise in a small, medium or large setting. We briefly consider its possible impact on working practices, both with respect to staff as knowledge consumers, and as knowledge creators.