Concept, development and implementation of FER e-invoice system

An e-invoice is the most widely used electronic document in the world. Although it covers only one segment of the entire supply chain, the e-invoice has a central role in the development of electronic business. In this paper, concept, development and implementation of electronic invoicing systems are presented on a case study of an e-invoice system named FER e-invoice. The system has the following characteristics that make it different from other similar systems: the FER e-invoice system is based on scalable, open and modern 4-corner architecture which is applicable in real business environment; the system is able to transform invoices between some of the most used XML-based e-invoice standards (the system contains one of the first implementations of the CII 2.0 standard) - this feature enables both SMEs and large enterprises to use the system; it is the first implementation of e-invoice system in accordance with the E-invoice specification issued by Croatian E-invoice Committee; the system enables automatic generation of a payment order from an e-invoice; as functional addition to the basic system, a data warehouse was developed to enable business analyses process; the system was developed by using modern technologies such as web application and web services that enterprises enables reducing coasts.