Introduction Data Types Contents Package

60 Co Figure 17 — Data types contained in the Contents package The details of each class contained in the package are explained in the following sub clauses. pyright © 2011 Open Geospatial Consortium Copyright © 2011 Open Geospatial Consortium 61

7.3.3.3 SPSContents

This data type defines the supported encodings for tasking parameter values and provides metadata about the sensors facaded by the service. In addition, it provides information on the storage time of task and task request status information. By default, SPS servers store the last status information only. After finalization of a task or task request, any SPS service stores this information until the minStatusTime has expired. This time period starts when the task or task request transitions into a final state. Optionally, SPS servers can store any additional historic status information. SPS servers indicate this capability by adding the since parameter to the metadata of the GetStatus operation in the Capabilities document see clause 7.3.2.4.3 - Advertising Support for Status Logging on page 57. The SPSContents acts as the property provider for a SensorOffering see clause 22 in [OGC 09-001]. The SPSContents see Figure 17 type is derived from SWES AbstractContents type defined in clause 7 of [OGC09-001] and therefore inherits all the properties contained in that data type. SPSContents restricts the content model of AbstractContents in that it requires that the offering property is of type SensorOffering see clause 7.3.3.4 or a subtype thereof. Requirement http:www.opengis.netspecSPS2.0reqGetCapabilitiesResponsecontents REQ 45. The SPSContents data type shall contain the properties defined for SWES AbstractContents. In addition, it shall contain the properties according to Table 24 in combination with Table 25. Table 24 — Properties in the SPSContents data type Name Definition Data type and values Multiplicity and use minStatusTi me time period for which the services provides status information about finalized tasks or tasking requests TM_PeriodDuration, see ISO 19108 One mandatory supportedE ncoding encoding supported by the service to encode tasking parameter values SWEEncodingCode, see clause 10.2.3 in OGC 09-001 applicable code values as defined in Table 25 One or more mandatory 62 Copyright © 2011 Open Geospatial Consortium Table 25 — Code values applicable to the supportedEncoding property Applicable Code Values Additional Note http:www.opengis.netswe2.0TextEncoding best suited in most cases if ASCII encoded parameters are used http:www.opengis.netswe2.0XMLEncoding generally applicable http:www.opengis.netswe2.0BinaryEncoding suited for example for transferring image data to the service

7.3.3.4 SensorOffering

This data type contains metadata about a sensor provided by the service. The SensorOffering see Figure 17 type is derived from SWES AbstractOffering defined in clause 7 of [OGC 09-001] and therefore inherits all the properties contained in that type. SensorOffering does not restrict the content model of AbstractOffering. Requirement http:www.opengis.netspecSPS2.0reqGetCapabilitiesResponsesensorOffering REQ 46. The SensorOffering type shall contain the properties defined for SWES AbstractOffering. In addition, it shall contain the property according to Table 26. Table 26 — Properties in the SensorOffering type Name Definition Data type and values Multiplicity and use observable Area the area that the sensor can observe PointOrPolygon, see clause 7.3.3.5 One mandatory The SensorOffering represents an inheritor of the properties contained in the SPSContents