Upload
leah-daly
View
219
Download
3
Tags:
Embed Size (px)
Citation preview
The use of SDMX at the ECB
Xavier SosnovskyEuropean Central Bank
Bonn, 2009-04-02
2
Overview
• Data exchange: SDMX-EDI• Data storage: SDMX Information Model• Data dissemination: SDMX-ML
3
Data exchange: SDMX-EDI
• 27 NCBs• 7 NSIs• Eurostat• IMF• BIS
Using SDMX-EDI
4
Overview
• Data exchange: SDMX-EDI• Data storage: SDMX Information Model• Data dissemination: SDMX-ML
5
Data storage: SDMX Information model
• Data stored in FAME and Oracle databases• Based on the SDMX information model (concepts,
code lists, key families, dataflows, etc)
6
Overview
• Data exchange: SDMX-EDI• Data storage: SDMX Information Model• Data dissemination: SDMX-ML
7
SDMX-ML on the ECB websites
• Export functionality on the ECB Statistical Data Warehouse
• Bilateral exchange rates & euro area yield curves• Publication of national contributions• ECB visualisation tools
8
The ECB Statistical Data Warehouse
Full support of extractions in SDMX-ML format
9
Bilateral exchange rates and euro area yield curves
Extractions into SDMX-ML format
10
Publication of national contributions (1)
1. The problem: Need to improve the accessibility of ESCB statistics (user request).– Time-consuming task– Accessibility issues
2. The solution: To present euro area aggregates and national contributions in one table, simultaneously on the ECB and participating NCBs websites.
3. The benefits:– Increased user-friendliness– Consistent data and presentation– Minimised maintenance work
11
Publication of national contributions (2)
Technical overview:• SDMX standards: SDMX-ML 1.0 Compact format data
files published on the ECB website• XSLT + a programming/scripting language (i.e.: Java,
PHP, etc)• Multi-channel output (HTML, CSV, etc)
12
Publication of national contributions (3)
NCBs implementations: Own added values.• Localization• Database with wizard and personalization features• Display of metadata• Additional download formats
13
Publication of national contributions (4)
Benefits• The ESCB statistics sites appear as a co-ordinated
network with an entry point in all NCBs• Users do not have to leave the NCB website to
consult ESCB data• Look and feel of NCB website is preserved• Translation into national languages
14
ECB visualisation tools (1): Current applications
ECB dynamic visualisation tools use SDMX-ML as format for data feeds. Examples:
1. The bilateral exchange rates graphs
2. The euro area yield curves
3. The inflation dashboard
15
ECB visualisation tools (2): An SDMX visualisation framework
• Develop libraries that can be used to build visualisation tools for statistical data and metadata
• Written in ActionScript 3 (Flex/Flash applications)
• Based on the SDMX information model v. 2
15
16
ECB visualisation tools (3): An SDMX visualisation framework
16
Data
SDMX-ML data files(data sets, series, observations, etc)
SDMX-ML data structure definitions (concepts, code lists, data structure definitions, etc)
ECB SDMX Framework
SDMX-ML Readers
SDMX Information model
Visual display
Applications
Application 1
Application 2
Application 3
Application 4
Read
View
Use
Translate
Access
Users
17
ECB visualisation tools (4): An SDMX visualisation framework
17
• Open source project• ECB, NY FED, BOC, OECD• Code hosted and publicly available on Google Code• Strict commit policy and change management
procedures• BSD license• Roles
– Leadership roles (Project Manager, Project Advisor and Project Architect)
– Committers: three individuals– Contributors: contributions are welcome from all
– Users: the code is available to all
18
ECB visualisation tools (5): Planned work
• Generalise the use of this technology to other sections
of the ECB website (e.g.: effective exchange rates,
HCIs, Eurosystem joint dissemination sections, etc.)
• Replace charts of the ECB Statistical Data Warehouse
with similar interactive visualisation tools
• Add new statistical domains to the ECB dashboard
19
SDMX Web services on the SDW (1)
• Available 2009 Q3• Possibility to get all statistical data stored in the
SDW• Support for the SDMX-ML Query format• Possibility to get all the data or updates and
revisions only• Possibility to retrieve data snapshots• Possibility to filter data by dataflows, datasets,
dimensions, attributes, date ranges, etc• Data returned in SDMX-ML Compact Data and SDMX-
ML Generic Data formats (v. 2)
20
SDMX Web services on the SDW (2)
• Possibility to retrieve data structure definitions, code lists and concept schemes
• Possibility to retrieve the category schemes, organisation schemes and dataflow definitions (including constraints)
• Metadata returned in SDMX-ML Structure format
21
SDMX Web services on the SDW (3)
• Possibility to submit subscription requests and receive update notifications, when specific actions occur on data and metadata
• Possibility to receive notifications via email and via an HTTP request