1. A computer program product having computer program code stored in a memory when executed by a processor for ranking coverage over subsets of code, said computer program product comprising: program code for combining at least one coverage measure with at least one concern based criterion for each of a plurality of code subsets; wherein the concern based criterion includes at least one from the group consisting of: code complexity, number of recent changes in the subsets of code, number of review issues over a user-selected period, number of reported bugs, location of reported bugs, and number of primitives of a user selected function type; program code for ordering the code subsets by the combination of coverage measure and at least one concern based criteria; and program code for outputting to a user the ordered code subsets.