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1 -4 General Notes for Implementers
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1 += {{id name="_Toc291503"/}}4 General Notes for Implementers =
4 4  
5 5  This section discusses a number of topics other than the exchange of data sets in SDMX formats. Supported only in SDMX-ML (and some in SDMX-JSON), these topics include the use of the reference metadata mechanism in SDMX, the use of Structure Sets and Reporting Taxonomies, the use of Processes, a discussion of time and datatyping, and the conventional mechanisms within the SDMX-ML Structure message regarding versioning and referencing.
6 6  
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10 10  
11 11  There are several different representations in SDMX-ML, taken from XML Schemas and common programming languages. The table below describes the various representations, which are found in SDMX-ML, and their equivalents.
12 12  
13 -(% style="width:1185.29px" %)
14 -|(% style="width:250px" %)**SDMX-ML Data Type**|(% style="width:285px" %)**XML Schema Data Type**|(% style="width:271px" %)**.NET Framework Type**|(% style="width:354px" %)**Java Data Type**
15 -|(% style="width:250px" %)String|(% style="width:285px" %)xsd:string|(% style="width:271px" %)System.String|(% style="width:354px" %)java.lang.String
16 -|(% style="width:250px" %)Big Integer|(% style="width:285px" %)xsd:integer|(% style="width:271px" %)System.Decimal|(% style="width:354px" %)java.math.BigInteger
17 -|(% style="width:250px" %)Integer|(% style="width:285px" %)xsd:int|(% style="width:271px" %)System.Int32|(% style="width:354px" %)int
18 -|(% style="width:250px" %)Long|(% style="width:285px" %)xsd.long|(% style="width:271px" %)System.Int64|(% style="width:354px" %)long
19 -|(% style="width:250px" %)Short|(% style="width:285px" %)xsd:short|(% style="width:271px" %)System.Int16|(% style="width:354px" %)short
20 -|(% style="width:250px" %)Decimal|(% style="width:285px" %)xsd:decimal|(% style="width:271px" %)System.Decimal|(% style="width:354px" %)java.math.BigDecimal
21 -|(% style="width:250px" %)Float|(% style="width:285px" %)xsd:float|(% style="width:271px" %)System.Single|(% style="width:354px" %)float
22 -|(% style="width:250px" %)Double|(% style="width:285px" %)xsd:double|(% style="width:271px" %)System.Double|(% style="width:354px" %)double
23 -|(% style="width:250px" %)Boolean|(% style="width:285px" %)xsd:boolean|(% style="width:271px" %)System.Boolean|(% style="width:354px" %)boolean
24 -|(% style="width:250px" %)URI|(% style="width:285px" %)xsd:anyURI|(% style="width:271px" %)System.Uri|(% style="width:354px" %)Java.net.URI or java.lang.String
25 -|(% style="width:250px" %)DateTime|(% style="width:285px" %)xsd:dateTime|(% style="width:271px" %)System.DateTime|(% style="width:354px" %)javax.xml.datatype.XMLG regorianCalendar
26 -|(% style="width:250px" %)Time|(% style="width:285px" %)xsd:time|(% style="width:271px" %)System.DateTime|(% style="width:354px" %)javax.xml.datatype.XMLG regorianCalendar
27 -|(% style="width:250px" %)GregorianYear|(% style="width:285px" %)xsd:gYear|(% style="width:271px" %)System.DateTime|(% style="width:354px" %)javax.xml.datatype.XMLG regorianCalendar
28 -|(% style="width:250px" %)GregorianMonth|(% style="width:285px" %)xsd:gYearMonth|(% style="width:271px" %)System.DateTime|(% style="width:354px" %)javax.xml.datatype.XMLG regorianCalendar
29 -|(% style="width:250px" %)GregorianDay|(% style="width:285px" %)xsd:date|(% style="width:271px" %)System.DateTime|(% style="width:354px" %)javax.xml.datatype.XMLG regorianCalendar
30 -|(% style="width:250px" %)Day, MonthDay, Month|(% style="width:285px" %)xsd:g*|(% style="width:271px" %)System.DateTime|(% style="width:354px" %)javax.xml.datatype.XMLG regorianCalendar
31 -|(% style="width:250px" %)Duration|(% style="width:285px" %)xsd:duration|(% style="width:271px" %)System.TimeSpan|(% style="width:354px" %)javax.xml.datatype.Dura tion
11 +|SDMX-ML Data Type|XML Schema Data Type|.NET Framework Type|Java Data Type
12 +|**String**|**xsd:string**|**System.String**|**java.lang.String**
13 +|**Big Integer**|**xsd:integer**|**System.Decimal**|**java.math.BigInteger**
14 +|**Integer**|**xsd:int**|**System.Int32**|**int**
15 +|**Long**|**xsd.long**|**System.Int64**|**long**
16 +|**Short**|**xsd:short**|**System.Int16**|**short**
17 +|**Decimal**|**xsd:decimal**|**System.Decimal**|**java.math.BigDecimal**
18 +|**Float**|**xsd:float**|**System.Single**|**float**
19 +|**Double**|**xsd:double**|**System.Double**|**double**
20 +|**Boolean**|**xsd:boolean**|**System.Boolean**|**boolean**
21 +|**URI**|**xsd:anyURI**|**System.Uri**|**Java.net.URI or java.lang.String**
22 +|**DateTime**|**xsd:dateTime**|**System.DateTime**|**javax.xml.datatype.XMLG regorianCalendar**
23 +|**Time**|**xsd:time**|**System.DateTime**|**javax.xml.datatype.XMLG regorianCalendar**
24 +|**GregorianYear**|**xsd:gYear**|**System.DateTime**|**javax.xml.datatype.XMLG regorianCalendar**
25 +|**GregorianMonth**|**xsd:gYearMonth**|**System.DateTime**|**javax.xml.datatype.XMLG regorianCalendar**
26 +|**GregorianDay**|**xsd:date**|**System.DateTime**|**javax.xml.datatype.XMLG regorianCalendar**
27 +|**Day, MonthDay, Month**|**xsd:g***|**System.DateTime**|**javax.xml.datatype.XMLG regorianCalendar**
28 +|**Duration**|**xsd:duration**|**System.TimeSpan**|**javax.xml.datatype.Dura tion**
32 32  
33 33  There are also a number of SDMX-ML data types which do not have these direct correspondences, often because they are composite representations or restrictions of a broader data type. For most of these, there are simple types which can be referenced from the SDMX schemas, for others a derived simple type will be necessary:
34 34  
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140 140  
141 141  Further to the above, the mapping between the non-native data types is presented in the table below:
142 142  
143 -|**SDMX Facet**|**XML Schema**|**JSON schema **"**pattern**"^^[[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)^^1^^>>path:#sdfootnote1sym||name="sdfootnote1anc"]](%%)^^ **for "string" type**
140 +|**SDMX Facet**|**XML Schema**|**JSON schema **"**pattern**"^^[[^^1^^>>path:#sdfootnote1sym||name="sdfootnote1anc"]]^^ **for "string" type**
144 144  |GregorianYear|xsd:gYear|(((
145 145  "^-?([1-9][0-9]{3,}|0[0-9]{3})(Z|(\+|-)((0[0-
146 146  
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241 241  
242 242  This is used to unambiguously state that a date-time represents an observation at a single point in time. Therefore, if one wants to use SDMX for data which is measured at a distinct point in time rather than being reported over a period, the date-time representation can be used.
243 243  
244 -Representation: xs:dateTime (YYYY-MM-DDThh:mm:ss)^^[[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)^^2^^>>path:#sdfootnote2sym||name="sdfootnote2anc"]](%%)^^
241 +Representation: xs:dateTime (YYYY-MM-DDThh:mm:ss)^^[[^^2^^>>path:#sdfootnote2sym||name="sdfootnote2anc"]]^^
245 245  
246 246  === {{id name="_Toc291512"/}}4.2.6 Standard Reporting Period ===
247 247  
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315 315  
316 316  Representation: common:ReportingWeekType (YYYY-Www, e.g. 2000-W53)
317 317  
318 -Notes: There are either 52 or 53 weeks in a reporting year. This is based on the ISO 8601 definition of a week (Monday - Saturday), where the first week of a reporting year is defined as the week with the first Thursday on or after the reporting year start day.^^[[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)^^3^^>>path:#sdfootnote3sym||name="sdfootnote3anc"]](%%)^^ The reporting week is always represented as two digits, therefore 1-9 are 0 padded (e.g. 01). This allows the values to be sorted chronologically using textual sorting methods.
315 +Notes: There are either 52 or 53 weeks in a reporting year. This is based on the ISO 8601 definition of a week (Monday - Saturday), where the first week of a reporting year is defined as the week with the first Thursday on or after the reporting year start day.^^[[^^3^^>>path:#sdfootnote3sym||name="sdfootnote3anc"]]^^ The reporting week is always represented as two digits, therefore 1-9 are 0 padded (e.g. 01). This allows the values to be sorted chronologically using textual sorting methods.
319 319  
320 320  **Reporting Day**:
321 321  
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353 353  11. **If the [PERIOD_INDICATOR] is W:**
354 354  111. **If [REPORTING_YEAR_START_DATE] is a Friday, Saturday, or Sunday:**
355 355  
356 -Add^^[[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)^^4^^>>path:#sdfootnote4sym||name="sdfootnote4anc"]](%%)^^ (P3D, P2D, or P1D respectively) to the [REPORTING_YEAR_START_DATE]. The result is the [REPORTING_YEAR_BASE].
353 +Add^^[[^^4^^>>path:#sdfootnote4sym||name="sdfootnote4anc"]]^^ (P3D, P2D, or P1D respectively) to the [REPORTING_YEAR_START_DATE]. The result is the [REPORTING_YEAR_BASE].
357 357  
358 358  1.
359 359  11.
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