Web services are services that provide functions and data via the internet. Similarly to a search engine, queries will be sent from a sender, which in this case is not a person, but a software program. The web service returns the results to the program querying it. Web services can be provided for use either internally or externally to the company. If you would like to, for example, find the name of a bank based on a routing code, a web service can determine and return the desired data using an operation. The operations are described using WSDL (Web Services Description Language) files. The exchange of information takes place via an exchange of XML files. In order to use a web service, the URL with which the web service is identified must be known. With Intrexx, web service provisions can be consumed without requiring additional programming effort. Furthermore, you can provide your own web services.