This is Business::OnlinePayment::Skipjack, an Business::OnlinePayment backend
module for the Skipjack transaction network.  It is only useful if you have an
account with SkipJack:
http://www.skipjack.com/transactionnetwork/index.html

Business::OnlinePayment is a generic interface for processing payments through
online credit card processors, online check acceptance houses, etc.  (If you
like buzzwords, call it an "multiplatform ecommerce-enabling middleware
solution").