PEF Element: quantity

Description:

The PEF quantity element uses an attribute to indicate the unit of measure. The attribute is of type uriReference.

Proposed Usage:

This element was developed to support the Epicentre quantity data types. It is intended as a direct mapping from Epicentre to an XML file.

XML Schema:

  • The schema and examples do not explicitly show the lines that set the namespaces.
  • All schema examples will use xsd: as the namespace for the schema tags and datatypes, and null for all the locally generated namespaces.
  • The defining file, either peftypes_u.xsd or peftypes_q.xsd, must be imported into the document building the application schema.
  • It is recommended that these elements and their subelements have a namespace qualifier. The recommended qualifier is 'pef'. 
    • <xsd:element name="quantity" type="quantityType"/>

    Sample Usage Schema:

  • The element is globally defined. It is recommended that elementFormDefault be "qualified."
    •   <element name="data_value">
   <complexType>
    <sequence>
     <element ref="pef:quantity"/>
    </sequence>
   </complexType>
  </element>

    Sample XML:

    The example will show namespace of 'pef' 

      <data_value>
    <pef:quantity unit="#ftUS">962.4</pef:quantity>
  </data_value>
    Last Modified: March 21, 2001
    ©Copyright 2001 POSC. All rights reserved.