Because a task is divided laying works ok with putting ng, which may cause confusion in handling employee works on a pallet. May be mixed with the good work ng .
Because coffe breaks area jobs job job placement with OK NG, which may cause an employee to handle the job on hand pallet may work better with contamination have NG .
Because the tables are divided into the areas of the work place to OK NG work which may be confusing to employees will be made in the work and took hold down the pallete NG may be made to work, to work good.