All entries for Wednesday 16 March 2011
March 16, 2011
So far we have almost finished our ppt, however, there are still so many arguments about the finial decision. For example, we use different tools to analyze one issue, but sometimes, the results are different according to the tools. Different tool have different focus, or it can say we use them with different focus. Decision tree is an effective to calculate the profit while grid analysis is useful in identifying the strengths of the factories without considering the cost. Therefore, we must make balance of them or we may say which aspect is more important. Then bias occurs as we should choose one of the decisions in our own opinions.
Also, it is unlikely that we can avoid bias. Ahp seems more scientific, but there are many biases exist when we are deciding the criterias and then comparing them. And smart, may be I can say biases exist in it from the beginning to the end when it is being used. Every tool has a lot of biases, however, bias doesn¡¯t destroy these tools so much as they are always considered as effective tools if used appropriate. Obviously, bias can cause problems and arguments all the time. In contrast, there¡¯s another voice that claims bias can serve as the shortcut in some circumstance, for example, reasoning by analogy and confirmation bias. Besides, sometimes, perhaps bias is more accurate and effective than calculation. Who knows.