Only after a called function requests that data be passed to it can the data be manipulated by the function to produce a useful result.
Answer the following statement true (T) or false (F)
False
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Which of the following is not a valid identifier?
a) Start b) AboutForm c) modFirst Welcome d) value4
A(n) ________ is composed of software programs known as bots, which run autonomously on a large number of zombie computers
Fill in the blank(s) with correct word
Which of the following is a programming interface for connecting a Web application to a database and defines technologies that allow applications, such as Word or Excel, to interact with the Web?
A. ADOSQL B. ADO C. SQL D. SNAOLEDB
For the original product evaluation scheme, the overall rankings of each product variation are found by computing its average over all test sub- jects. Comment on whether you think that this is a reasonable ap- proach. What other approaches might you take?
A few months later, you are again approached by the same marketing director as in Exercise 3. This time, he has devised a better approach to measure the extent to which a customer prefers one product over other, similar products. He explains, “When we develop new products, we typically create several variations and evaluate which one customers prefer. Our standard procedure is to give our test subjects all of the product variations at one time and then 7 ask them to rank the product variations in order of preference. However, our test subjects are very indecisive, especially when there are more than two products. As a result, testing takes forever. I suggested that we perform the comparisons in pairs and then use these comparisons to get the rankings. Thus, if we have three product variations, we have the customers compare variations 1 and 2, then 2 and 3, and finally 3 and 1. Our testing time with my new procedure is a third of what it was for the old procedure, but the employees conducting the tests complain that they cannot come up with a consistent ranking from the results. And my boss wants the latest product evaluations, yesterday. I should also mention that he was the person who came up with the old product evaluation approach. Can you help me?”