Originally Posted by
Cambo
If you want a system in place to resolve the found issues, then things do get complicated (both at the business level as well technical). Just delaying, putting suspicious transactions on hold for manual validation (for example, more sales than 20% of the average, etc), isn't that difficult to implement.
But the issue is business people may never have thought the situation that just happened could happen.. Or that the risk of it happening was so small that it outweighed the cost of developing a solution for it. Too be fair if this was a case of fares being loaded incorrectly, simply building a check for a 2nd user to authorise the changes would reduce the risk of it happening again. That would be far easier than building an algorithm to spot unusual transactions like this, imho.