You can manually link ports, or you can automatically link ports between transformations. When you link ports automatically, you can link by position or by name. When you link ports automatically by name, you can specify a prefix or suffix by which to link the ports. Use prefixes or suffixes to indicate where ports occur in a mapping. For example, a mapping includes a port in the Source Qualifier called Name and a corresponding port in a Filter transformation called FilName. ‘Fil’ is the prefix you specify when you automatically link ports between the Source Qualifier and Filter transformation.