- In term of the system performance. The system can process job to quickly and very fast for responding with user. But in period time we prepare and setup system in the morning on Saturday before we start buying. We found some problems about program have outstanding, this cause may be from scales. Because we found that when turn on scale and without to do something about 5 minute, scale goes into sleep mode. And when have object to be weighing once again scale will go back into the normal mode . That incident caused a lack of program connect some time with scale , and when came back to work again , cause the program error. Which will require information about bit single in scale of products or stakeholders to be true to the cause.