Depend on how much you willing to invest to do the validation. The methods vary due to many factors such as the nature of business, the ease of collecting data, quality of the information produced, set of assumptions made, etc. From a simple survey to a structured survey ... From an empirical a...
1.Yes first you ought to secure permit within and without the boarders 2.Search people with proven_track records in Auditing and Inspection with 5 and 10 minimum and maximum experience respectively 3.Also check your competitors around and double up your work strategies . call me for more strategi...