download as a pdf - Southern California Coastal Ocean Observing ...

Part III. Appendix 2: Data TransportINTEROPERABILITY APPROACHThe basic interoperability approach within the BSM comprises four elements.1. Each service type within the BSM provides a well-defined request interface that provides a consistent,abstract representation for the underlying data or service. All data is abstracted intonamed layers and provide a set of sample dimensions for subsetting operations. The minimal setof sample dimensions is the layer’s latitude/longitude bounding box.2. All data are explicitly geo-referenced. Each server (WMS, WCS, WFS) must advertise the supportedspatial reference systems that the service instance is capable of returning the data in. Allservers must support the standard geographic reference system (WGS84).3. Each service type within the BSM produces its response formatted in predefined, well-known binaryformats (WKB). The WKBs differ between server types but are defined to meet the requirementsfor the particular use.4. Each service type within the BSM has an integral advertising capability. In response to a GetCapabilitiesrequest, each server will return an XML-encoded response document listing the layersavailable, and operations the service instance is capable of performing on them.194