7. The method of claim 1 wherein the set of transactions is stored in a database, and further comprising: updating the database by adding the transaction to the set of transactions.
7. The method of claim 1 wherein the set of transactions is stored in a database, and further comprising: updating the database by adding the transaction to the set of transactions. 8. The method of claim 7 wherein the transaction is added to the set of transactions in response to the transaction being allowed.