The provided dataset is the result of an analysis based on operator assembly duration. In this file, the duration of the assembly experiments performed by 12 subjects with 8 scenarios is included as well as the results of the analysis of the three influence factors using the Hadamard matrix. The Excel file contains two sheets indicating that two groups of subjects start the experiment from the real workstation or from the immersive workstation. The following data are labeled via different colors and detailed as follows: (1) Subject number ( colored yellow in the Excel file). (2) The Hadamard matrix includes the experimental factors (learning factor, workstation type, workstation order) and the experimental scenario numbers ( both in colored orange in the provided file). (3) The output consists of four items: the assembly duration of each experimental scenario, represented in frames (purple) and seconds (green). The number of assemblies of each scenario (red). Average time spent on each assembly (blue). And the impact value of each influence factor ( colored in gray at the bottom of each matrix).