| System usability of each device | 1 | Please describe the pros and cons of using this system on a PC device from an overall perspective. |
| 2 | Please describe the pros and cons of using this system on a VR device from an overall perspective. |
| Understanding of analysis based on node-link control interface | 3 | Did interacting with the node-link control interface on PC and VR devices help you comprehensively understand the overall process of visual analytic tasks? |
| Precision of control | 4 | When using the system on a PC device, was the process of clicking/dragging to control the information of the target data comfortable and intuitive? |
| 5 | When using the system on a VR device, was the process of clicking/dragging to control the information of the target data comfortable and intuitive? |
| Convenience of collaboration using network | 6 | Do you think collaboration with your partner went smoothly while using each device? What were the pros and cons in terms of collaboration? |