[occi-wg] Incorporating units into OCCI
Ian Stokes-Rees
ijstokes at spmetric.com
Tue May 26 10:56:32 CDT 2009
I finished my PhD thesis on a RESTful model for grid computing a few
years ago. I did some work on formalizing XML-based descriptors,
including units/scaling. You may find that some of the material in
Appendix B and C is useful:
http://crystal.harvard.edu/~ijstokes/thesis/RESTfulGrid-StokesRees-Thesis.pdf
I envisioned two options: i) units were specified in attributes on an
element:
<memory type="GB"> 2 </memory>
ii) units were specified in-line and needed to be parsed:
<memory> 2 GB </memory>
At the time I felt that "type" provided a more generic modifier on a
value than "units", and would allow things like:
<start type="USDate">5/21/2009</start>
or
<start type="EUDate">21/5/2009</start>
I provide 5 sets of "type" modifiers: time, frequency, metric, binary,
transfer. No rocket science, but perhaps providing an cut-down portion
of the schemas will be helpful, so I include them below.
Ian
<xs:simpleType name="TimeTypeList">
<xs:enumeration value="fs"/>
<xs:enumeration value="ps"/>
<xs:enumeration value="ns"/>
<xs:enumeration value="us"/>
<xs:enumeration value="ms"/>
<xs:enumeration value="s"/>
<xs:enumeration value="sec"/>
<xs:enumeration value="second"/>
<xs:enumeration value="min"/>
<xs:enumeration value="minute"/>
<xs:enumeration value="h"/>
<xs:enumeration value="hr"/>
<xs:enumeration value="hour"/>
<xs:enumeration value="d"/>
<xs:enumeration value="day"/>
<xs:enumeration value="wk"/>
<xs:enumeration value="week"/>
<xs:enumeration value="mon"/>
<xs:enumeration value="month"/>
<xs:enumeration value="yr"/>
<xs:enumeration value="year"/>
<xs:simpleType name="MetricTypeList">
<xs:enumeration value="f"/>
<xs:enumeration value="p"/>
<xs:enumeration value="n"/>
<xs:enumeration value="u"/>
<xs:enumeration value="m"/>
<xs:enumeration value="K"/>
<xs:enumeration value="M"/>
<xs:enumeration value="G"/>
<xs:enumeration value="T"/>
<xs:enumeration value="P"/>
<xs:simpleType name="FrequencyTypeList">
<xs:enumeration value="Hz"/>
<xs:enumeration value="KHz"/>
<xs:enumeration value="MHz"/>
<xs:enumeration value="GHz"/>
<xs:enumeration value="THz"/>
<xs:simpleType name="BinaryTypeList">
<xs:enumeration value="B"/>
<xs:enumeration value="KB"/>
<xs:enumeration value="MB"/>
<xs:enumeration value="GB"/>
<xs:enumeration value="TB"/>
<xs:enumeration value="PB"/>
<xs:simpleType name="TransferTypeList">
<xs:enumeration value="Kb/s"/>
<xs:enumeration value="Mb/s"/>
<xs:enumeration value="Gb/s"/>
<xs:enumeration value="Tb/s"/>
<xs:enumeration value="Pb/s"/>
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