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The following appeared in a memo from the vice president of a company that builds shopping malls throughout the country.
"The surface of a section of Route 101, paved two years ago by McAdam Road Builders, is now badly cracked and marred by dangerous potholes. In another part of the state, a section of Route 66, paved by Appian Roadways more than four years ago, is still in good condition. Appian Roadways has recently purchased state-of-the-art paving machinery, and it has hired a new quality-control manager. Because of its superior work and commitment to quality, we should contract with Appian Roadways rather than McAdam Road Builders to construct the access roads for all our new shopping malls."
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The statement of applying the Appian Roadways rather than McAdam Road Builders appears sound, at the first glance, based on the different condition of the roads in different places. However, the conclusion the author makes is a bit hasty and to make a finally decision the author need to take more elements into account about the issue.
In the first place, the author makes a false analogy of the conditions of the two roads. It is true that the former road the author mentions is badly cracked and marred, but is it all because of the quality of the road? As we know, there are many factors relative to the damage of the road besides the builders themselves. It is very possible that people walking in the section are much more than those who walk in the section of Route 66, thus the possibility for the damage of the surface of the former are larger than the latter. There are still chances that those walking in the first section take less care to the road and even some of them may damage it intensively. If this is the case, the reason for the damage of the surface of the section may not the builders themselves but the users.
What's more, four-year is such a long time that it is hardly to judge the contemporary quality of the products in a company by the behaviors that times. Even if it is because of the good quality of the surface for the section the Appian Roadways made, of course, it is unwarranted, can it manage the same or even better quality of the next program, in spite of the new quality-quality-control manager, who can not present anything but only the commitent, which sometimes are far away from the pracitices? And what about the McAdam Road Builders? Do they have improvement now? And can they manage a better quality of the shopping malls? After all time is an important element for one to consider and to make a great improvement.
In sum, the author does not make a careful analysis of what will affect the quality of the shopping malls. To make a better evaluation, we need more information about the condition of the two companies now. Any conclusion is useless unless all the elements are taken into account.