CROSS Magazine Issue 06 | Page 30

C RO S S Conference DAY 1 2 Ser vice is dynamic and the user s’ behavior is, apar t from changing depending on the environment, subjective and heterogeneous. What would be your suggestions for designing an effectively functional service that will satisfy its users? There are two common approaches, the inductive and deductive approaches. We can obtain large amount of data and extract it into a theory or a plan of customer’s activity. Data mining would be a good method. But the extraction requires fundamental assumptions. To generate these assumptions, you have to understand the whole concept of user’s behaviors, which include the value or purpose of life. But we have to be reminded that science cannot directly deal with value, because value may be changed by history, culture, and various other reasons. Therefore, we want to make a field which is independent from culture, value, or other philosophical ideas. That is the attitude of science. However, it is difficult because in one way we have to admit the subjectivity but on the other hand, we want to eradicate subjectivity. To create science or engineering, we have to suppress subjectivity to a manageable and effective degree. 30 30