DNSSEC Application Tools are tools useful for writing DNSSEC aware applications. This generally means one of two desires for an application developer. It can be a desire for an application to parse the DNSSEC data itself and do something with it. Or it could be a desire to get DNSSEC specific error messages for the application's use, for instance, to give a user a more descriptive error message. It could also be for some other reason we haven't imagined, go crazy.