In this video, we explore Altium Designer's integrated harness design features, showing how it simplifies creating wiring harnesses within the same environment as PCB and system design. This eliminates the need for third-party software, allowing engineers to work more efficiently. We demonstrate creating a harness design, either as a standalone project or within a multi-board setup, highlighting how to add modules, establish connections, and select components. The process from schematic to physical layout is covered, including the use of Active BOM and draftsman documents for complete project documentation. This walkthrough offers a concise overview of harness design in Altium Designer, emphasizing its advantages in streamlining the design process from start to finish.