Among the various information sources and various ways of presenting learning content in the e-learning environment, the Index of Learning Style (ILS) (Felder & Solomon, 1988) questionnaire might be the most suitable model for an e-learning or web-based environment. Especially, the sequential/global dimension plays an important role in determining how a student receives and processes information. In the developed personalized e-learning environment, we used the sequential/global dimension to gain the information on the learning style of each student. A student with the sequential learning style learns in small incremental steps and therefore has linear learning progress that student will be asked to learn concept by concept based on the learning path. In contrast, A student with global learning style uses a holistic thinking process and learns in large leaps. He/She tends to absorb learning material almost randomly without seeing connections, but after having learned enough material, he/she suddenly
gets the whole picture. Then he/she is able to solve complex problems and puts things together in novel ways but he/she has difficulties in explaining how he/she did it. In conclusion, we constructed the concept-effect relationships and asked multiple experts to weight the association between concept each and each test item so that diagnosing the students’ learning problems could work effectively by analysing students’ test answers. In addition, Felder & Soloman’s (1988) Index of Learning Style (ILS) questionnaire was employed to adjust the presentation styles of subject material based on the personalized learning styles of the students. Learning achievements classified into high, middle, and low levels, used to arrange learning material for individual students as well. The developed e-learning environment workflow is shown in Figure 2.