CISTI's Pay Per Article has just been released on the CISTI website. Pay Per Article (get it? Paper Article - even though, the product is really very electronic from the search to payment to the delivery of items) is a new offering from CISTI, that allows article level searching and ordering of documents from CISTI. It is based on the idea that many clients, rather than being pre-registered and requiring lots of information, could simply order documents with a credit card.
From an architecture perspective Pay Per Artcle is CISTI's first truly SOA-based application release. The project has produced a lot of new web services (based on our architecture) that we hope to use, reuse and expose in the near future.