The GEO Discovery Access Broker (GEO DAB) is a brokering framework and a key component of the GEOSS Common Infrastructure (GCI), connecting user’s requests to the resources shared by GEOSS Providers.
The GEO DAB applies the broker pattern, which separates users of services (clients) from providers of services (servers) by inserting an intermediary, called a broker. When a client needs a service, it queries a broker via a service interface. The broker then forwards the client's service request to a server, which processes the request. The GEO DAB presently provides broker components for discovery, access, semantics-enabled search.
You can search and display Web Mapping Services (WMS) from the GEO DAB of the GCI that align to the EBVs framework concept.