Figure 4
The flowchart consists of a large rectangular box divided into three main sections: “Phase 1” at the top, and “Phase 2” and “Phase 3” arranged side-by-side at the bottom. In “Phase 1”, the flowchart begins with the first rectangular box at the top labeled “Literature Review”. A vertical arrow points down to the second rectangular box labeled “Identification of Twenty seven C S F s for integrating G L S S with Industry 4.0 in manufacturing sectors”, which also receives a horizontal leftward arrow from a rectangular box on the right labeled “Opinions of experts”. A vertical arrow begins from the second box and points downward to the third rectangular box labeled “Authorization of Twenty seven C S F s”, which also receives a horizontal leftward arrow from a rectangular box on the right labeled “Questionnaire Survey”. A vertical arrow begins from the third box and points downward to the fourth rectangular box labeled “Selection of Twenty Three C S F s for final analysis”, which also receives a horizontal leftward arrow from a rectangular box on the right labeled “Reliability Test”. A vertical arrow begins from the fourth box and points downward to the fifth rectangular box, which is a wide box labeled “Calculate responses of related industrial personnel for the prioritization of C S F s”. In the bottom section, a vertical arrow begins from the left side of the fifth box and points downward to “Phase 2”, while a vertical arrow begins from the right side of the fifth box and points downward to “Phase 3”. “Phase 2” is labeled “G R A” vertically on the left and contains four boxes arranged from top to bottom labeled “S 1”, “S 2”, “S 3”, and “S 4” with corresponding descriptions in the rectangular boxes: “Determine the normalized value”, “Obtain the deviation sequence”, “Calculate grey relational coefficients”, and “Calculate grey relational grades and ranks of C S F s”, all connected by vertical downward arrows. “Phase 3” is labeled “B W M” vertically on the right and contains four boxes arranged from top to bottom labeled “S 1”, “S 2”, “S 3”, and “S 4” with corresponding descriptions in the rectangular boxes: “Determine the best and worst C S F s”, “Compose best to another vector”, “Compose other to worst vector”, and “Determine the optimum weights to rank C S F s”, all connected by vertical downward arrows. Finally, a horizontal arrow begins from “S 4” in “Phase 2” and points rightward to a box at the bottom of “Phase 3” labeled “Validation of ranks formed by G R A by B W M”.Research methodology. Source: Authors’ own creation