1. A computer readable storage medium comprising a computer readable program stored on a tangible storage device for modifying data set names, wherein the computer readable program when executed on a computer causes the computer to: receive a data set name as an index of a catalog entry for a catalog, wherein the data set name comprises at least three qualifiers ordered as an initial qualifier, a second qualifier, and a third qualifier, each qualifier separated from adjacent qualifiers by a period, and the catalog is a Z/OS® catalog organized with Virtual Storage Access Method (VSAM) Key Sequence Data Sets (KSDS); modify the data set name using a naming algorithm that transposes at least two alphanumeric characters within at least one qualifier and transposes the second qualifier and the third qualifier of the data set name to form a modified data set name, wherein an alias qualifier is not modified; store the catalog entry indexed with the modified data set name ; and present the modified data set name as the index of the catalog entry.