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Lecture/Education material (General)

Ways a scientific knowledge is formulated
Hong Gil Nam1,2,*
1Division of Molecular Life Sciences and National Core Research Center for Systems Bio-Dynamics, POSTECH, Pohang, Kyungbuk 790-784, Republic of Korea
2The I-BIO graduate program, POSTECH, Pohang, Kyungbuk 790-784, Republic of Korea
*Corresponding author
  Received : March 23, 2009
  Accepted : March 27, 2009
  Published : March 30, 2009
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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This is a part of a lecture note I introduce in one of the graduate courses at the POSTECH, Korea. Scientific knowledge is an organized view on nature. Achieving scientific knowledge has been an endeavor of Homo sapiens since ancient times and has been an invaluable asset to the fitness of Homo sapiens. Here, I try to classify the ways a scientific knowledge is formed and try to explain each of them. This is a subjective classification but turned out to be quite useful for early stage scientists. The four major approaches to a scientific knowledge I explain in this article are observation-driven, hypothesis-driven, purpose-driven, and data/technology-driven approaches.

Keyword: Scientific procedures, Observation driven, Hypothesis driven, Purpose driven, Data/Technology driven
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