Workday Web Services (WWS) provide a programmatic public API for our On-Demand Workday Business Management Services. Web services are one of the central components of the Workday architecture and provide the core enablement tool to the integration with Workday.

WWS is implemented using industry-standard web services technology which encompasses WSDL, SOAP, REST, and the WS-* standards. In addition, WWS is versioned to ensure stability and backward compatibility. As a result, your investment in a specific version of our WWS is protected as Workday's Business Services evolve and mature.