As a result of comparing the bracket-system terms of the official
building document in Choson Dynasty with bracket-system terms
that is used in present, the following fact is identified ;
1) Salmi and handae were almost used in the same meaning with
the present bracket-system terms. 2) Haengong, dugong, and
chomcha dose not correspond to the present bracket-system terms
at all. 3) Ikgong was used in similar meaning with the present
terms, but it is showed a little of difference from the present
terms. 4) Domaechom and byongchom are the inner members that
are used in corner bracket of dapo-system. 5) Jwaudae is the
outer member that is used in corner bracket.