For example, on its own the figure 1.2953 is pretty meaningless, but if we know that this is an exchange rate for the US dollar against the euro on 23 November 2006, it starts to make more sense. The list below tells you everything you need to know about the SDMX information model ] in order for us to start developing an application based on the SDMX standard:ĭescriptor concepts: In order to make sense of some statistical data, we need to know the concepts associated with them. It also proposes a standard way of implementing web services, including the use of registries. It offers an information model for the representation of statistical data and metadata, as well as several formats to represent this model (SDMX-EDI and several SDMX-ML formats). The first version of the standard is an ISO standard (ISO/Technical Specification 17369:2005). The Statistical Data and Metadata Exchange initiative is sponsored by seven institutions (the BIS, the ECB, Eurostat, the IMF, the OECD, the UN and the World Bank) to foster standards for the exchange of statistical information. Some of the tasks described in the tutorial will also require the use of an XML-validating parser, for example Apache Xerces or xmllint from libxml2, and an XSLT processor, such as Apache Xalan, Saxon or xsltproc from libxml2.įor those who use Ant as their build system, most of the exercises can be run using the supplied build file. To make the most of this tutorial, a basic knowledge of XML and XML-related technologies, such as XML schemas, XSLT and SAX, is required. However, first we will present, in a nutshell, the SDMX information model and some of the SDMX-ML formats. The tutorial will look at the technology from both sides of the fence: the side of the data provider (“How can we use SDMX-ML to publish statistical data on our website?”) and the side of the data consumer (“What kind of useful things can we do with an SDMX-ML data file?”). The aim of this tutorial is to introduce you to SDMX-ML using a practical example – the publication of the euro foreign exchange reference rates
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