A Web service is a service offered by an electronic device for communicating with another electronic device via the internet. Web service have their own protocols and standards used for exchanging data between applications or systems. Software applications (written in various programming languages) which are running on different platforms can communicate and exchange data over computer networks like through the Internet.
There are basically two types of web services: SOAP and REST. SOAP stands for Simple Object Access Protocol and REST stands for Representational State Transfer. OpKey supports both SOAP and REST web services.
For detailed information on Service Repository, please refer : https://opkey.crestechglobal.com/user-guide/pages.php?subid=147&accordid=11