Evaluation of the Implementation of Lean Techniques to Reduce Construction Process Waste in Real Estate Firms in Addis Ababa, Ethiopia

Table 1

The fundamental pairwise comparison scale [31].

Scale	Ranking	Explanation
1	Equally important	Both criteria or alternatives contribute to the objective equally
3	Moderately important	Moderate preference is given to one criterion or alternative over the other
5	Strictly important	Strict preference is given to one criterion or alternative over the other
7	Very strictly important	Very strict preference is given to one criterion or alternative over the other
9	Extremely important	The highest preference is given to one criterion or alternative over the other
2, 4, 6 &8	Mid values