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The consistency ratios obtained for seasonality, maintainability, greenhouse gas emission, public acceptance and the criteria matrices fell within the acceptable range while those obtained for economy, sustainability, quality, risk of contamination, technology requirement and energy requirement fell outside the acceptable range.
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Subsequently, an innovative design criteria matrix (DCM) constructed using repertory grids technique is rated with regard to specific design option.
A desk study was carried out to develop a list of key design considerations, which was used to inform an initial criteria matrix for the decision support tool.
The referential series is the optimal values for each criterion from the criteria matrix.
Since the criteria matrix was originally consistent, the criteria weights were not affected.
Table 5 Criteria matrix – original matrix Cost Quality Delivery Warranty Capacity Reputation Fin.
A total of ten pairwise comparison matrices of alternatives and one criteria matrix were formed.
Formulation of normalized pay-off matrix (P ij ) : The criteria matrix (Table 1) was normalized using the equation (6).
The criteria matrix was normalized and from the normalized matrix which is shown in Table 7, the weightage of each criterion was calculated.
In the same vein, the principal Eigen vectors of the normalized criteria matrix gave the relative weights of the criteria (W j ).
Step 1: generation of referential series: The evaluation criteria for the available alternatives were tabulated and this was known as criteria matrix (Table 1).
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CEO of Professional Science Editing for Scientists @ prosciediting.com