Polylogics is the creator and sole licensor for DIAD, a robust system designed and refined for the needs of directory publishers and online service providers. The software is a comprehensive suite covering lead and sales management, billing (paper or paperless), collections, customer service, and production tools for both print and electronic products. DIAD is constantly adapting to the needs of the 21st century publisher. Periodic updates automatically provide publishers the most current system enhancements. Integrated customer data from a single entry point controls the billing, publication, and data hand off for the most complex of needs, whether the product is electronic or print. DIAD works with a variety of APIs for billing and fulfillment of one-time purchases and digital subscriptions.