Results from Data Carrier Analysis for Circular Construction Supply Chains

This anonymized data is a result from an experiment testing three data carriers (QR Codes, NFC Chips, and Direct Product Marking) for Circular Construction Supply Chains. Using a quantitative experimental design, the study evaluates these technologies based on speed, SUS user experience, and error rates. The task was to use the data carriers on 12 components and count how many components were older than 25 years old. The participants were timed, any errors in the final result was counted, and they subsequently filled out a System User Scale for the data carrier used. There were three stated hypotheses explored: 1) Higher levels of data carrier device digitization are expected to lead to a decrease in reading time. 2) Higher levels of device digitization are anticipated to result in a decrease in the number of errors. 3) Higher levels of device digitization are anticipated to result in higher SUS scores. The findings reveal that the use of QR codes and NFC chips significantly improves efficiency and user satisfaction compared to DPM. The Location had no statistically significant impact on results, and there was no shown difference for the Errors.

本匿名数据源自一项针对循环建筑供应链的实验，该实验测试了三种数据载体——二维码（QR Codes）、近场通信芯片（NFC Chips）及直接产品标识（Direct Product Marking）。该研究采用定量实验设计，从速度、SUS系统可用性量表（System Usability Scale）用户体验及错误率三个维度对上述技术展开评估。实验任务为使用上述数据载体读取12个组件，并统计其中使用年限超过25年的组件数量。研究人员对参与者的操作时长进行计时，统计最终结果中的错误数量，并要求参与者随后填写所使用数据载体对应的系统用户量表（System User Scale）。研究探索了三项明确假设：1）数据载体设备的数字化程度越高，读取时间预计越短；2）设备数字化程度越高，错误数量预计越少；3）设备数字化程度越高，SUS评分预计越高。研究结果表明，与DPM相比，使用二维码和NFC芯片可显著提升效率与用户满意度。实验地点对结果无统计学显著影响，且错误数量未呈现显著差异。