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Table 7 Statistical results of second-level indicators identified under Delphi method

From: Model construction of medical endoscope service evaluation system-based on the analysis of Delphi method

Second-level indicators M Standard deviation Coefficient of variation K Q+-Q Cr
1.1 Product display 4.000 0.837 0.209 0.286 3 4.000
1.2 Technical information 4.429 0.676 0.153 0.524 2 4.476
1.3 Technical solutions 4.476 0.750 0.167 0.571 3 4.405
1.4 Requirement Demonstration 4.190 1.030 0.246 0.476 4 4.000
1.5 Sales system 3.143 0.573 0.182 0.000 2 3.119
1.6 New technology promotion 3.571 0.926 0.259 0.143 3 3.571
2.1 Configuration project 4.619 0.740 0.160 0.714 3 4.405
2.2 Timeliness of arrival 4.381 0.590 0.135 0.429 2 4.476
2.3 Installation manual 4.476 0.680 0.152 0.571 2 4.429
2.4 Device installation 4.857 0.359 0.074 0.857 1 4.524
2.5 Equipment commissioning and quality control 4.667 0.730 0.156 0.810 2 4.500
2.6 Equipment acceptance 4.810 0.402 0.084 0.810 1 4.643
2.7 Data protocol 4.190 0.873 0.208 0.476 2 4.048
2.8 Primary operational training 4.667 0.577 0.124 0.714 2 4.429
3.1 Maintenance system 4.571 0.598 0.131 0.619 2 4.714
3.2 Post-sales service personnel 4.571 0.746 0.163 0.714 2 4.500
3.3 Complaint handling 4.048 0.973 0.241 0.333 4 4.167
3.4 Adverse event monitoring 4.190 0.750 0.179 0.381 2 4.214
3.5 Product recall 4.000 0.949 0.237 0.381 3 3.952
3.6 Maintenance and use manual 4.714 0.644 0.137 0.810 2 4.429
3.7 Maintenance response 4.810 0.402 0.084 0.810 1 4.619
3.8 Maintenance accessories 4.714 0.463 0.098 0.714 1 4.619
3.9 Standby machine 4.381 0.669 0.153 0.476 2 4.405
3.10 Warranty contract 4.619 0.498 0.108 0.619 1 4.619
3.11 Maintenance and repair report 4.476 0.750 0.167 0.571 3 4.524
3.12 Retraining of clinical operations 4.238 0.831 0.196 0.476 2 4.214
3.13 Retraining in clinical application 4.286 0.784 0.183 0.476 2 4.119
3.14 Technical support 4.333 0.658 0.152 0.429 2 4.238
3.15 Scientific research cooperation 3.714 1.102 0.297 0.286 4 3.976
3.16 Maintenance quality 4.619 0.498 0.108 0.619 1 4.619