The WSO2 Governance Registry, which is an open source, integrated SOA registry-repository, which supports efficient management of an organization's growing SOA implementation, delivered as a multi-tenant, elastically scaling, metered platform.
Service is the basic entity of your SOA platform. With WSO2 Stratos Governance you can manage service metadata and the service lifecycle as well as maintain multiple versions of a given service, and much more.
WSDL defines the service interface. With WSO2 Stratos Governance, you can store and manage WSDLs with ease, keeping track of dependencies and associations such as shemas and policies.
XML Schema defines data types in a WSDL. As in the case of WSDLs, WSO2 Stratos Governance keeps the associations of schemas and helps in the impact analysis process, when maintaining the data models associated with your SOA.