All survey and census programs are subject to nonresponse and erroneous reporting, whereas data users demand complete and accurate data to be used for a variety of statistical purposes. It is well-recognized that the data collection agency has the optimal vantage point and attendant obligation to provide valid allocations for missing values and to adjust spurious responses. The development of statistically precise and mathematically rigorous edit and imputation systems is essential in meeting this objective and is vital in providing users with high quality data products.