A computer-based Design History Tool was created to improve how design information is documented. This tool helps designers, engineers, and managers understand, communicate, and redesign mechanical systems more effectively. It captures not only the final design but also the decisions and constraints that shaped the product from start to finish. The tool allows users to browse through design artifacts, evolution, rationales, and constraints easily. This makes it simpler for people to review and analyze existing designs, leading to better communication and decision-making in the design process.