ÍST TS 312 defines web application programming interfaces implemented by Icelandic commercial and savings banks to expose shared functionality and information for currency exchange rate, under the Icelandic Online Banking Web Services (IOBWS) framework of specifications. Other ÍST Technical Specifications exist which address related but discrete units of the overall IOBWS framework, either as new additions or upgrades to the previous specifications. Some crosscutting guidelines and shared concerns are addressed in the workshop agreement ÍST WA 316. As the consumption and implementation of each part of IOBWS are optional, the documents aim to be independent of each other. The focus in ÍST TS 312 is the information needed for consuming information about foreign currency rates though the variations in client usage patterns and bank specific implementations detail result in many different use cases for said information. The intended audience for the specification document ÍST TS 312 is dev
