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Producing and managing metadata. Workshop on Writing Metadata for Development Indicators Lusaka, Zambia 30 July – 1 August 2012. Session outline. Generic statistical models Principles of good metadata management Benefits of managing metadata.
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Producing and managing metadata Workshop on Writing Metadata for Development Indicators Lusaka, Zambia 30 July – 1 August 2012 Writing Metadata for Development Indicators
Session outline • Generic statistical models • Principles of good metadata management • Benefits of managing metadata Writing Metadata for Development Indicators
“Metadata collection is dull, expensive, and time consuming.” UNECE Guidelines for the Modelling of Statistical Data and Metadata (1995)
Producing metadata • Metadata created and used throughout the production process • Reuse rather than recreate • National standards and systems Writing Metadata for Development Indicators
Generic Statistical Business Process Model (GSBPM) Source: UNECE (2009) www.unece.org/stats/gsbpm.html Writing Metadata for Development Indicators
Generic Statistical Information Model (GSIM) – under development DRAFT Source: UNECE (2012) www1.unece.org/stat/platform/display/gsim Writing Metadata for Development Indicators
Managing metadata • Principles of good management • Statistical Metadata in a Corporate Context • Central systems and tools • Vocabularies • Classification management • Question databases Writing Metadata for Development Indicators
Core principles: metadata handling • Consistent metadata across entire process • Active not passive • Reuse • Version control Writing Metadata for Development Indicators
Core principles: metadata authority • Registration of metadata • Single source • One entry / update • Document variations from standards Writing Metadata for Development Indicators
Variables Manager Management Application Survey Manager Other databases Statistics Portugal Variables Registry Data users Search Engine Source: Statistics Portugal (INE), Isfan, T.M., Variables Subsystem, paper presented at the Joint UNECE / EUROSTAT / OECD Work Session on Statistical Metadata (METIS), 2009 http://www.unece.org/fileadmin/DAM/stats/documents/ece/ces/ge.40/2009/mtg1/wp.17.e.pdf
Core principles: part of business • Integral part of business • Matching metadata • Describe flow • Capture at source • Exchange and use Writing Metadata for Development Indicators
Core principles: users • Identify users • Different formats and levels of detail • Availability Writing Metadata for Development Indicators
Benefits of managing metadata • Use up-to-date classifications and definitions • Gain resources • Increase morale and productivity • Capitalising on lessons learned • Make it available to users • Easier for data users to understand • Increased trust in official statistics Writing Metadata for Development Indicators