Implementation of GSBPM DDI and SDMX reference metadata

Implementation of GSBPM, DDI and SDMX reference metadata at Statistics Denmark ESTP course on standards, Luxembourg 2023 Marts 2015 Mogens Grosen Nielsen (mgn@dst. dk),

Agenda 1. Definitions, models and solution for quality reporting 2. Towards more integrated metadata 3. Information models and issues

Metadata – the SDMX definition as the short and easy-to-understand definition Reference metadata: • Conceptual metadata • Methodological and processing metadata • Quality metadata Structural metadata: • Metadata act as identifiers and descriptors of the data

”Classical” metadata elements implemented using Data Documenation initiative (DDI) and SDMX Stat. Bank Methods/ ”Survey” Methods papers Quality declaration Concept Variable/dataset Concepts database Hvad betyder Variable database Implemented in 2012 -2015 Classifications Klassifikationsdatabase Class database

SDMX Standard for Quality: Single Integrated Metadata Structure: SIMS Content (population, concepts, reference time etc) Statistical processing (sources and methods) Information on 5 quality dimensions 1. 2. 3. 4. 5. Relevance Accuracy and reliability Timeliness and punctuality Comparability Accessibility and Clarity 5

GSBPM and work processes with focus and quality declarations Needs Prepare user needs etc. Analyse : Fill in accuracy etc. 6

Enter Q. D. Publish at Dst. dk 300 surveys implemented in 2015 METADATA IN COLECTICA Existing metadata Publish at the Intranet Q. D. to EU

Towards more integration of metadata • Metadata-driven approach • GSIM compliant model in DDI and Colectica (concepts, variables and classification) • Metadata management • Harmonisation of statistical concepts

GSBPM and work-processes overall 9

GSBPM and work-processes overall Reference metadata: needs, purpose etc 10

GSBPM and work-processes overall Structural metadata: DDI on questionnarie, variables and cubes and ref. metadata Reference metadata: concepts, population etc 11

GSBPM and work-processes overall Metadata: DDI used to create survey system, databases and output systems etc 12

GSBPM and work-processes overall Survey system used 13

GSBPM and work-processes overall Reference metadata on quality 14

GSBPM and work-processes overall Structural and reference metadata used for dissemination. Output-systems used in the production 15

GSBPM and work-processes overall All metadata used for evaluation 16

GSIM and DDI and informationmodels Model / level Use in Stat DK Logical GSIM compliant DDI model (3. 2) Phsysical GSIM compliant DDI model implemented in Colectica Conceptual Selection of variable, category etc from GSIM (the concept corner)

Issues - Versioning / historical information in DDI 3. 2 and in Colectica - Use of the full GSIM combined with GSBPM - Common metadata and centralized metadata management - How to organize metadata in DDI 3. 2 and in Colectica (concepts, variables etc) - How to handle changes e. g. change in a common codelist on civil status - Use of group, shemes etc in DDI 3. 2 and in Colectica

Thanks for your attention • DDI conference in Copenhagen 2 -3 December 2015 • Paper about the solution in Stat DK will be presented UNECE workshop 5 -7 May 2015

The End!