NDC Expands Transaction & Information Management Access With Secure Offering National Data Corporation announced today the launch of Internet Access @dvantage™, a new Web-based transaction information management tool for NDC eCommerce customers that affords financial institutions, merchants and Independent Sales Organizations (ISOs) convenient access to critical transaction and payment information. Internet Access @dvantage streamlines operations by eliminating time- consuming manual look-up efforts and offering users quick and easy 24x7 Internet access to current and historical payment information. Depending on the user, customers can view authorized and settled transaction history and update merchant database information using their Internet browser. Transaction data is accessible for as early as the previous day and is available online for a historical period of up to 60 days.