The element dcc:identification is of type dcc:identificationType and is called from a dcc:identificationListType. dcc:identification gives the possibility to identify the calibration certificate (dcc:corData), a calibration system (dcc:items) or a calibration object (dcc:item) with several identifiers.
In some cases it may happen that there is no identifier on the calibration material. This may occur when the calibration material has very small geometric dimensions. For example, microelectromechanical systems (MEMS) typically have dimensions in the range of a few micrometres (µm). Therefore, it is often not possible to attach this identifying feature directly to the object (calibration item). This also applies, for example, to the smallest mass pieces whose representation consists of a very thin wire (e.g., bonding wire with a diameter of 30 µm) made of precious metal (typically: gold) and short length in the range of single-digit millimetres.
Therefore, the entry in the DCC is not mandatory for this identifying characteristic of the calibrated material.
However, it is recommended that the calibration laboratory or the manufacturer of the calibration material finds another way to remedy this deficiency. A typical method is to mount the calibration material on a more convenient slide or to give the calibration material a unique shape that does not affect the feature to be calibrated. For this purpose, the already mentioned micro-measurement pieces are bent into a triangular or square shape and can thus be distinguished by their geometry alone. Another possibility is to uniquely label or mark the packaging and thus make it unique in that only one object with the geometry of the calibrated item can be accommodated.
The tree structure of the element type dcc:identificationListType has the following appearance:
The tree structure of the element type dcc:identificationType has the following appearance:
<xs:complexType name="identificationType">
<xs:sequence>
<xs:element name="issuer">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:enumeration value="manufacturer"/>
<xs:enumeration value="calibrationLaboratory"/>
<xs:enumeration value="customer"/>
<xs:enumeration value="owner"/>
<xs:enumeration value="other"/>
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="value" type="dcc:notEmptyStringType"/>
<xs:element name="name" type="dcc:textType" minOccurs="0"/>
</xs:sequence>
<xs:attribute name="id" type="xs:ID" use="optional"/>
<xs:attribute name="refType" type="dcc:refTypesType" use="optional"/>
</xs:complexType>
See the list of abbreviations here
[This element is the root element for the input of identifiers. It contains the child element dcc:identification, in which the respective identifier is to be entered. At least the mandatory elements of dcc:identification must be completed.]::
Element Element type |
Use | Description |
---|---|---|
dcc:issuer xs:string |
[M] | Only one of the following words can be entered in the element issuer. - manufacturer - calibrationLaboratory - customer - owner - other If the element is filled with another content, an error occurs during the check against the XML schema. |
dcc:value dcc:notEmptyStringType |
[M] | The identifier is entered here. |
dcc:description dcc:textType |
[O] | Other information about the identifier. |
Attribute Attribute type |
Use | Description |
---|---|---|
id xs:ID |
[O] | This standard XML data type is used to represent a unique ID. It is used to clearly identify the object in the DCC. The data type xs:ID is deliberately used here, as this enables validation in various tools without any add-ons. |
refId xs:IDREFS |
[O] | IDREFS represents the IDREFS attribute type from [XML 1.0 (Second Edition)]. The ·value space· of IDREFS is the set of finite, non-zero-length sequences of IDREFs. The ·lexical space· of IDREFS is the set of space-separated lists of tokens, of which each token is in the ·lexical space· of IDREF. The ·itemType· of IDREFS is IDREF. |
refType dcc:refTypesType |
[O] | A XML List to link to reference types. |
The manufacturer has specified the identification number 1040917:
<dcc:identifications>
<dcc:identification>
<dcc:issuer>manufacturer</dcc:issuer>
<dcc:value>1040917</dcc:value>
</dcc:identification>
</dcc:identifications>
The manufacturer has indicated the identification number 1040917 as well as the batch A3/19 and also
clearly distinguished between the identification number and the batch:
<dcc:identifications>
<dcc:identification>
<dcc:issuer>manufacturer</dcc:issuer>
<dcc:value>1040917</dcc:value>
</dcc:identification>
<dcc:description>
<dcc:content lang="en">code number</dcc:content>
<dcc:content lang="en">Serial No.</dcc:content>
</dcc:description>
<dcc:identification>
<dcc:issuer>manufacturer</dcc:issuer>
<dcc:value>A3/19</dcc:value>
</dcc:identification>
<dcc:description>
<dcc:content lang="en">Charge</dcc:content>
<dcc:content lang="en">Charge</dcc:content>
</dcc:description>
</dcc:identifications>
Manufacturer, calibration laboratory and customer have each given an identification number:
<dcc:identifications>
<dcc:identification>
<dcc:issuer>manufacturer</dcc:issuer>
<dcc:value>1040917</dcc:value>
<dcc:description>
<dcc:content lang="en">code number</dcc:content>
<dcc:content lang="en">Serial No.</dcc:content>
</dcc:description>
</dcc:identification>
<dcc:identification>
<dcc:issuer>calibrationLaboratory</dcc:issuer>
<dcc:value>PTB4711</dcc:value>
<dcc:description>
<dcc:content lang="en">Number</dcc:content>
<dcc:content lang="en">Serial No.</dcc:content>
</dcc:description>
</dcc:identification>
<dcc:identification>
<dcc:issuer>customer</dcc:issuer>
<dcc:value>0815</dcc:value>
<dcc:description>
<dcc:content lang="en">code number</dcc:content>
<dcc:content lang="en">Serial No.</dcc:content>
</dcc:description>
</dcc:identification>
</dcc:identifications>