Official statistics about the volume of workforce and rates of employment and unemployment are considered a priority for most world countries due to its importance in showing the status of labor and giving indications about the economic situation and tools of developing it....
Quality control – done in conjunction with data collection – is one of key stages of implementing the household energy survey, when a fully automated system is adopted with certain regulations to control data entry, to find errors and notes on forms and to fix them under a supervisor after recurring to the household if necessary....