This paper introduces glBIS, a hypertext tool designed to facilitate early design deliberations in large, complex design problems. The tool implements the Issue-Based Information Systems (IBIS) method, which focuses on capturing design rationale through structured discussions among stakeholders. glBIS uses color and a high-speed relational database server to support the construction and browsing of typed IBIS networks, enabling collaborative work across a local area network. Early experiments suggest that while the IBIS method is still evolving, it aligns well with the tool's capabilities. The paper discusses the IBIS method, the design and features of glBIS, and provides an example of its use in a real-world context. It also reflects on the strengths and limitations of the tool, highlighting the synergy between the tool and the method, and the challenges of premature segmentation and capturing issue resolution.This paper introduces glBIS, a hypertext tool designed to facilitate early design deliberations in large, complex design problems. The tool implements the Issue-Based Information Systems (IBIS) method, which focuses on capturing design rationale through structured discussions among stakeholders. glBIS uses color and a high-speed relational database server to support the construction and browsing of typed IBIS networks, enabling collaborative work across a local area network. Early experiments suggest that while the IBIS method is still evolving, it aligns well with the tool's capabilities. The paper discusses the IBIS method, the design and features of glBIS, and provides an example of its use in a real-world context. It also reflects on the strengths and limitations of the tool, highlighting the synergy between the tool and the method, and the challenges of premature segmentation and capturing issue resolution.