By definition, there are two sources of error in the data. (judithcurry.com)
The opportunities for process efficiency are myriad in such an environment, while the risk of human error in data entry is greatly reduced. (wkelmsolutions.com)
Decision - making is hard when there are gaps or significant errors in the data so it is worth spending time with all involved to improve the quality of the data. (ukbreastfeeding.org)