Analytical Hierarchy Process Essay

713 Words2 Pages

For that reason and analysis from literature reviews, GKS’s need include quality as one of their main criteria when comes to supplier selection process in order to resolve their current quality issue of their defective products. These criteria involve tradeoffs and are a key issue in the supplier assessment process since it measures the performance of suppliers. For example, one vendor may offer inexpensive parts of slightly below average quality, while another vendor may offer higher quality parts, with uncertain delivery thus setting up trade-offs. In general, several quantitative and qualitative factors such as quality, price, flexibility and delivery performance must be considered to determine suitable suppliers (Bevilacqua & Petroni, 2002). However, besides all these criteria and factors that affects vendor selection, decision making is difficult and complicated by other factors as well that could be tangible or intangible criteria (Lysons & Farrington, 2002).

There are various supplier selection models such as linear weighting, mathematical programming, total cost of ownership and a few others available to help decision makers with their decisions regarding supplier selection. These models are able to address the multiple criteria decision-making nature of the supplier selection.

One of the most widely used methods in the linear weighting models is the Analytical Hierarchy Process (AHP). This model weights each given criterion by representing the highest and least importance. The ratings of the criteria are multiplied according to their weights in order to reach a total score for each vendor by assessing their performance so they can select the suppliers with the highest overall rating. This tool is a multi criteria method...

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...costs associated with purchasing processes throughout the complete value chain of the firm (Bhutta & Huq, 2002). This approach can be used for almost all types of purchase depending on the factors with regards to the type of product or service hence it can be used to value and categorize suppliers. Most companies that use this approach to measure and develop accurate purchasing process and use it as tool to evaluate the proper suppliers (Mattson, 2000). This model can be useful to companies that are very much interested in considering cost factors, thus TCO analysis can be the implemented as a tool in their purchasing perspective (Haq & Kannan, 2006).

However, each model has its own strengths, limitations, certain underlying assumptions and unique perspectives. Thus, no single model by itself can address all the issues of concerns that a decision maker might have.

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