specimen.xsd Observations and Measurements - XML Implementation is an OGC Standard. Copyright (c) [2010] Open Geospatial Consortium. To obtain additional rights of use, visit http://www.opengeospatial.org/legal/. An object on which measurements may be made, often ex-situ. Note that if this specimen is a "processed" version of another (e.g. by grinding, sieving, etc) then the predecessor (if known) may be recorded as a relatedSamplingFeature The attribute materialClass:GenericName shall provide a basic classification of the material type of the specimen. EXAMPLE soil, water, rock, aqueous, liquid, tissue, vegetableMatter, food, gas, solid. A basic register of material-classes may be provided by OGC at http://www.opengis.net/def/material/OGC-OM/2.0/ The attribute samplingTime:TM_Object shall record when the specimen was retrieved from the sampled feature. If present, the attribute samplingMethod:SF_Process shall describe the method used to obtain the specimen from its sampledFeature. If present, the attribute samplingLocation:GM_Object shall describe the location from where the specimen was obtained. NOTE Where a specimen has a relatedSamplingFeature whose location provides an unambiguous location then this attribute is not required. However, if the specific sampling location within the sampledFeature is important, then this attribute supports its description. In many applications specimen preparation procedures are applied to the material prior to its use in an observation. The class PreparationStep (Figure 13) shall link a SF_Specimen to a OM_Process that describes a phase of the specimen preparation. It shall support one attribute. If present, the attribute size:Measure shall describe a physical extent of the specimen. This may be length, mass, volume, etc as appropriate for the specimen instance and its material class. Xlink attributes added to enable rich annotation, e.g. size-type If present, the attribute currentLocation:Location shall describe the location of a physical specimen. This may be a storage location, such as a shelf in a warehouse or a drawer in a museum. NOTE If a specimen no longer exists, for example it was destroyed in connection with an observation act, then the currentLocation should be omitted or carry a suitable null indicator. If present, the attribute specimenType:GenericName shall describe the basic form of the specimen. EXAMPLE polished section; core; pulp; solution. In many applications specimen preparation procedures are applied to the material prior to its use in an observation. The class PreparationStep (Figure 13) shall link a SF_Specimen to a OM_Process that describes a phase of the specimen preparation. The attribute time:TM_Object shall describe the time that the OM_Process was applied to the SFN_Specimen. It supports ordering of preparation steps. If present, the attribute processOperator:CI_ResponsibleParty shall describe the operator of the process involved in the preparation step. sam:SF_Process Location (Figure 13) is a union class (choice) that shall support two attributes. The attribute geometryLocation:GM_Object shall select a geometric representation of the location. The attribute nameLocation:EX_GeographicDescription shall select a description of the location using text or an identifier. The attribute geometryLocation:GM_Object shall select a geometric representation of the location. The attribute nameLocation:EX_GeographicDescription shall select a description of the location using text or an identifier.