TAILIEUCHUNG - Supply Chain Management Part 7

Tham khảo tài liệu 'supply chain management part 7', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | A Cost-based Model for Risk Management in RFID-Enabled Supply Chain Applications 231 The value of each row is either 1 2 3 4 or 5 and represent the rank shown in Table 27 . Since smaller rank value is more preferable than higher rank value. Table 28 indicates that each criterion has a different range. For instance the range for cost is in indicated in dollars in contrast to that for acceptance which is indicated in rank. It is not viable to the sum of the values of the different multiple criteria does not deliver a valid result. We need to transform the score of each factor according to its range value so that all factors have comparative ranges. Criterias Techniques EPC Design Tags Design Lightweight Protocol Lightweight ECC Steganography Range Acceptance 3 4 1 2 5 1-5 Cost 5 1 2 - Security 1 Complexity 2 1 3 4 5 1-5 Sum Normalized Score 100 Table 28. Evaluation based on range scores of Tag s authencity Techniques for Various Supply Chain Criterias We transform the score value of each factor to have the same range value of 0 to 1. A formula based on the simple geometry of a line segment is used to linearly convert the score of each factor from table 28 to table 30 to a single shared range. new score original score - olb nlb 16 Each factor has different importance weightings based on its organisation s priorities. Since the weighting is a subjective value the result changes with changes to the factors weightings. Table 29 displays an example of organisation A are weighting priorities in selecting their most appropriate tag authentication methodology. Acceptance Cost Security Complexity Sum Importance Level 20 40 30 10 100 Importance Weight Table 29. Supply Chain Criteria s Weight of Importance Table 30 shows the end result of normalizing the weighting of each factor demonstrating the opportunity for an organization to compare different based .

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