An additional advantage of using UTF-8 is that WIS searches using wildcard characters are also more consistent. For example, the expected results for filtering work items with the expression a?c would be items such as
aac,
abc,
acc,
and so on. However, searches are performed by a comparison of bytes, not characters, so actual results could include
a, followed by a Japanese character that includes
c in its byte representation, followed by
c. This situation is avoided when the iProcess Engine uses UTF-8.