Data Governance

98  •  O. Takaki, N. Izumi, K. Murata, and K. Hasida

to concepts, is necessary in dealing with semantic relations between key-

words. Furthermore, itthen may be necessary to clarify concepts that

have not been claried or have not gained a common consensus, such as

“patient notation information” and “medical acts.” On the other hand,

italso would be necessary to decide what aspects of the established con-

cepts of illnesses, drugs, etc., to systematize and in how much detail, etc.

In the next section, we will discuss what is built through ontologies

for such creation, sharing, and management of knowledge including the

systematization and clarication of knowledge.

Construction of Ontologies

In this section, the construction of ontology (in ot ...