We have built and tested WorkspaceNavigator, which supports knowledge capture and reuse for teams engaged in unstructured, dispersed, and prolonged collaborative design activity in a dedicated physical workspace. It provides a coherent unified interface for post-facto retrieval of multiple streams of data from the work environment, including overview snapshots of the workspace, screenshots of in-space computers, whiteboard images, and digital photos of physical objects. This paper describes the design of WorkspaceNavigator and identifies key considerations for knowledge capture tools for design workspaces, which differ from those of more structured meeting or classroom environments. Iterative field tests in workspace environments for student teams in two graduate Mechanical Engineering design courses helped to identify features that augment the work of both course participants and design researchers.The information captured in the design environment is intended to serve two constituencies: the team using the physical design workspace, and those in an oversight role, such as instructors, clients, managers, and design researchers.The WorkspaceNavigator system was initially developed for use in an interactive room [12], and was subsequently fieldtested in the work environments of fourteen student design teams in two year-long graduate mechanical engineering courses. Its usage was assessed through various means throughout the course of its design and deployment.These WorkspaceNavigator deployments illustrate how knowledge capture and access tools can help design teams document their process, improve flow of information from iteration to iteration of the design process, combat loss of critical knowledge artifacts and improve group interaction. These deployments also suggest ways to ease the difficulty of