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Refining the CDMS specification. Bruce Bannerman Australian Bureau of Meteorology e-mail: b.bannerman@bom.gov.au Co-Chair Expert Team – Climate Data Management Systems, Commission for Climatology. ET-CDMS, Geneva, 04-07 November 2014. Current Version of CDMS Spec.
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Refining the CDMS specification Bruce Bannerman Australian Bureau of Meteorology e-mail: b.bannerman@bom.gov.au Co-Chair Expert Team – Climate Data Management Systems, Commission for Climatology ET-CDMS, Geneva, 04-07 November 2014
Current Version of CDMS Spec • Is intended to provide a strategic vision • Refers readers to many other references • Need to balance: • Self-contained stand-alone doc, versus • References to authoritative sources • Sufficient detail is provided to: • support a primary evaluation of CDMS current state capabilities • commence business case, planning and IT architecture activities
Current Version of CDMS Spec • Not sufficient detail to: • Remove ambiguities in different WMO guidelines • e.g. rules on missing values • commence software development • describe use cases of how the CDMS is to be used • describe how components are intended to interact
Work required for CDMS Spec • Expand and refine each component. Ensure that it • contains the best information available • is not ambiguous • Describes the requirement in a clear, concise and consistent manner • is stand alone and does not direct reader to other documents • retains the lineage to the source document to facilitate maintenance of the spec, should the source change • Contains relevant use cases and swim lanesto describe the intended use and inter-relation ship of the component(s) • Contains sufficient technical detail to support IT development
Work required for CDMS Spec #2 • Define requirements for defining the source of data • Formal NMHS data • Informal data, e.g. Crowd Sourced data • Climate Metadata • Ensure that Observations Metadata is covered by WIGOS Metadata Standard • If not, Define Climate Profile of WIGOS Metadata Standard Review WMO Core Profile of ISO 19115 Discovery Metadata • Consider implications of CDMS Spec Climate Metadata • Is a Climate Profile of WCMDP now required to cover Data Provenance Metadata and Observations Metadata linkages? • Define what we want in Data Provenance Metadata
Prioritise work • Prioritise work on ‘Required Components’ • Need to support: • Developing Countries • CDMS Developers • Therefore we will need early deliverables • How do we allocate and coordinate work?
Version Management • Start with MS Word version of WMO No. 1131 used by WMO Editor • Use: • MS Word 2010 (Windows) • MS Word 2011 (Mac) • Track Changes • Version numbering • Use file naming convention