Matt and Kurmar:

Sorry to typo:

Because the incidence of the problem is very low,
it is important to  the generation part such a problem when generated.

I was going to have written the following things, to make sure though
it is likely already to have understood:

Because the incidence of the problem is very low,
WDT is important to find the generation part such a problem when generated.


-- 
Takeharu KATO
Fujitsu Limited
Email:kato.takeharu at jp.fujitsu.com