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Last modified by Artur on 2025/08/19 10:43
From version 4.9
edited by Helena
on 2025/05/21 21:33
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To version 4.6
edited by Helena
on 2025/05/21 21:32
Change comment: There is no comment for this version

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132 132  
133 133  **6. Uncoded statistical concept** text values are:
134 134  
135 -* Maximum 1050 characters;
136 -* From ISO 8859-1 character set.
135 +*
136 +** Maximum 1050 characters;
137 +** From ISO 8859-1 character set.
137 137  
138 138  **7. Time series keys**:
139 139  
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141 141  
142 142  == 3.4 SDMX-ML and SDMX-EDI Best Practices ==
143 143  
144 -=== 3.4.1 Reporting and Dissemination Guidelines ===
145 +=== 3.4.1 Reporting and Dissemination Guidelines ===
145 145  
146 146  **3.4.1.1 Central Institutions and Their Role in Statistical Data Exchanges **Central institutions are the organisations to which other partner institutions "report" statistics. These statistics are used by central institutions either to compile aggregates and/or they are put together and made available in a uniform manner (e.g. on-line or on a CD-ROM or through file transfers). Therefore, central institutions receive data from other institutions and, usually, they also "disseminate" data to individual and/or institutions for end-use.  Within a country, a NSI or a national central bank (NCB) plays, of course, a central institution role as it collects data from other entities and it disseminates statistical information to end users. In SDMX the role of central institution is very important: every statistical message is based on underlying structural definitions (statistical concepts, code lists, DSDs) which have been devised by a particular agency, usually a central institution. Such an institution plays the role of the reference "structural definitions maintenance agency" for the corresponding messages which are exchanged. Of course, two institutions could exchange data using/referring to structural information devised by a third institution.
147 147  
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221 221  * its content and description
222 222  * the relevant DSD that defines the structure of the data reported or disseminated according the the dataflow definition
223 223  
224 -==== 3.4.1.3 Exchanging Attributes ====
225 +**3.4.1.3 Exchanging Attributes**
225 225  
226 -===== //3.4.1.3.1 Attributes on series, sibling and data set level // =====
227 +**//3.4.1.3.1 Attributes on series, sibling and data set level //**//Static properties//.
227 227  
228 -//Static properties//.
229 -
230 230  * Upon creation of a series the sender has to provide to the receiver values for all mandatory attributes. In case they are available, values for conditional attributes  should also be provided. Whereas initially this information may be provided by means other than SDMX-ML or SDMX-EDI messages (e.g. paper, telephone) it is expected that partner institutions will be in a position to provide this information in SDMX-ML or SDMX-EDI format over time.
231 231  * A centre may agree with its data exchange partners special procedures for authorising the setting of attributes' initial values.
232 232  * Attribute values at a data set level are set and maintained exclusively by the centre administrating the exchanged data set.