1. A quality assurance system, comprising: a plurality of quality assurance stations, each being associated with a different local computer for examining a plurality of similar physical products by each of said local computers, and for producing from each physical product examination, a result thereof expressed by at least one source content in said local computer of the quality assurance station thereof, wherein said source contents of said plurality of similar physical products of each of said local computers comprise an equal format, being produced by that local computer, thereby said formats of said different local computers are different one from the other; a first configuration file, being present in each of said local computers, and being configured to convert from the format produced by that local computer, to a unified format; equal applications, each installed in one of said local computers, for running said conversion via said first configuration file, thereby converting said source contents to destination contents comprising a unified format; and an analyzing computer, for receiving said destination contents from said local computers, thereby said unified format accompanies said analyzing computer in analyzing said converted plain texts from distributed assurance stations.