There are many times when the barcode you scan does not represent exactly the data that is required by your system. It may be that you are scanning a retail EAN-13 barcode but you need to find the stock code, or that your barcode consists of multiple elements such as ItemCode-LotNumber-Quantity. There may be some leading zeroes or trailing characters you wish to truncate.
TransLution™ offers a range of standard manipulations that you can use to take a scanned piece of data and deliver the result you need without doing any kind of programming or custom logic.