Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th...
-
Upload
ella-haynes -
Category
Documents
-
view
215 -
download
0
Transcript of Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th...
![Page 1: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/1.jpg)
Chapter 9:Chapter 9:Data quality and metadataData quality and metadata
Ilaria DiMatteoIlaria DiMatteoUnited Nations Statistics DivisionUnited Nations Statistics Division
The 4The 4thth meeting of the Oslo Group on energy statistics meeting of the Oslo Group on energy statistics
Ottawa, Canada, 2-6 February 2009Ottawa, Canada, 2-6 February 2009
![Page 2: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/2.jpg)
Chapter 9
This chapter is based on the text adopted by the UN Stat. Comm. in other fields of statistics
Recommendations are highlighted in the text in bold
![Page 3: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/3.jpg)
Structure of the chapter
A. Data quality and its dimensions
B. Quality indicators and direct quaality measures
C. Metadata on energy statistics
![Page 4: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/4.jpg)
A. Data quality and its dimensions
Quality of data is assessed based on whether or not users are provided with information adequate for their intended use
All the measures that responsible agencies take to assure data quality constitute quality management
Countries are encouraged to develop their national energy data quality management programmes and make them available to users
![Page 5: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/5.jpg)
Data quality frameworks
IMF Data Quality Framework (DQAF)
European Statistical System (ESS)
OECD quality measurement framework
Overall aim to standardize and systematize measurement and reporting across countries
![Page 6: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/6.jpg)
Common dimensions of quality
Prerequisite of qualityRelevanceCredibilityAccuracyTimelinessMethodological soundnessCoherence (within dataset, across datasets, over
time and across countries)Accessibility
![Page 7: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/7.jpg)
Trade-offs
e.g. timeliness and accuracy
It is recommended that if countries are not in a position to meet the accuracy and timeliness requirements simultaneously, they should produce a provisional estimate, which would be available soon after the end of the reference period but would be based on less comprehensive data content
![Page 8: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/8.jpg)
Countries are encouraged to use a system of quality measures/indicators to develop their own quality assessment frameworks
It is recommended that a quality review of energy statistics be undertaken every four to five years or more frequently if significant methodological changes or changes in the data sources occur.
![Page 9: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/9.jpg)
B. Quality indicators and direct quality measures
Quality measures directly measure a particular aspect of quality
Quality indicators do not provide a measure of quality as such but provide information for the assessment of quality
Countries are encouraged to select those quality measures/indicators that together provide an assessment of the overall strengths, limitations and appropriate uses of a given data set
![Page 10: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/10.jpg)
When countries define the quality indicators for energy statistics, it is recommended that they ensure that the indicators satisfy the following criteria:
(a) they cover part or all of the dimensions of quality as defined previously;
(b) the methodology for their compilation is well established; and
(c) the indicators are easy to interpret
![Page 11: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/11.jpg)
It is recommended that careful attention be paid by countries to maintaining an appropriate balance between different dimensions of quality and the number of indicators
Countries are encouraged to use on a regular basis for measuring the quality of energy statistics the suggested (minimum) set of indicators
![Page 12: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/12.jpg)
C. Metadata in energy statistics
It is recommended that segmentation of users into groups and a layered approach to metadata presentation
As a minimum segmentation, metadata at the following two levels are recommended:
(a) Structural metadata presented as an integral part of the data tables;
(b) Reference metadata providing details on the content and quality of data which may accompany the tables or be presented separately via the Internet or in occasional publications.
![Page 13: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/13.jpg)
Components of metadata
data coverage
periodicity and timeliness
access by the public
integrity of disseminated data
data quality
summary methodology
dissemination formats
![Page 14: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/14.jpg)
Countries are encouraged to accord the development of metadata a high priority and to consider their dissemination an integral part of the dissemination of energy statistics
it is recommended that, in consideration of the integrated approach to the compilation of economic statistics, a coherent system and a structured approach to metadata across all areas of economic statistics be developed and adopted, focusing on improving their quantity and coverage
![Page 15: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/15.jpg)
The dissemination of national data and metadata using web technology and SDMX standards is recommended as a means to reduce the international reporting burden.
![Page 16: Chapter 9: Data quality and metadata Ilaria DiMatteo United Nations Statistics Division The 4 th meeting of the Oslo Group on energy statistics Ottawa,](https://reader036.fdocuments.net/reader036/viewer/2022082611/56649eda5503460f94be9272/html5/thumbnails/16.jpg)
Questions
The Oslo group is invited to
• provide overall comments on content and structure of the text
• Provide any views on the suggested recommendations
• other