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Last modified by Helena on 2025/09/10 11:19
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1 -8 Maintenance Agencies and Metadata Providers
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1 -{{box title="**Contents**"}}
2 -{{toc/}}
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4 -
5 5  All structural metadata in SDMX is owned and maintained by a maintenance agency (Agency identified by agencyID in the schemas). Similarly, all reference metadata (i.e., MetadataSets) is owned and maintained by a metadata provider organisation (MetadataProvider identified by metadataProviderID in the schemas). It is vital to the integrity of the structural metadata that there are no conflicts in agencyID and metadataProviderID. In order to achieve this, SDMX adopts the following rules:
6 6  
7 7  1. Agencies are maintained in an AgencyScheme (which is a sub class of //OrganisationScheme//); Metadata Providers are maintained in a MetadataProviderScheme.
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24 24  
25 25  The XML representing this structure is shown below.
26 26  
27 -**<str:AgencySchemes>**
23 +[[image:1747385891229-249.png]]
28 28  
29 -**<str:AgencyScheme agencyID="SDMX" id="AGENCIES">**
30 -
31 -**<com:Name xml:lang="en">Top-level Agency Scheme</com:Name>**
32 -
33 -**<str:Agency id="AA">**
34 -
35 -**<com:Name xml:lang="en">AA Name</com:Name>**
36 -
37 -**</str:Agency>**
38 -
39 -**<str:Agency id="BB">**
40 -
41 -**<com:Name xml:lang="en">BB Name</com:Name>**
42 -
43 -**</str:Agency>**
44 -
45 -**</str:AgencyScheme>**
46 -
47 -**<str:AgencyScheme agencyID="AA" id="AGENCIES">**
48 -
49 -**<com:Name xml:lang="en">AA Agencies</com:Name>**
50 -
51 -**<str:Agency id="CC">**
52 -
53 -**<com:Name xml:lang="en">CC Name</com:Name>**
54 -
55 -**</str:Agency>**
56 -
57 -**<str:Agency id="DD">**
58 -
59 -**<com:Name xml:lang="en">DD Name</com:Name>**
60 -
61 -**</str:Agency> &nbsp;&nbsp;**
62 -
63 -**</str:AgencyScheme>**
64 -
65 -**<str:AgencyScheme agencyID="BB" id="AGENCIES">**
66 -
67 -**<com:Name xml:lang="en">BB Agencies</com:Name>**
68 -
69 -**<str:Agency id="CC">**
70 -
71 -**<com:Name xml:lang="en">CC Name</com:Name>**
72 -
73 -**</str:Agency>**
74 -
75 -**<str:Agency id="DD">**
76 -
77 -**<com:Name xml:lang="en">DD Name</com:Name>**
78 -
79 -**</str:Agency> &nbsp;&nbsp;**
80 -
81 -**</str:AgencyScheme>**
82 -
83 -**<str:AgencyScheme agencyID="AA.DD" id="AGENCIES">**
84 -
85 -**<com:Name xml:lang="en">AA.DD Agencies</com:Name>**
86 -
87 -**<str:Agency id="EE">**
88 -
89 -**<com:Name xml:lang="en">EE Name</com:Name>**
90 -
91 -**</str:Agency>**
92 -
93 -**</str:AgencyScheme>**
94 -
95 -**</str:AgencySchemes>**
96 -
97 97  **Figure 17: Example Agency Schemes Showing a Hierarchy**
98 98  
99 -Examples of Structure definitions that show how Agencies are used, are presented below:
27 +Examples of Structure definitions that show how Agencies are used, are presented below:
100 100  
101 -**<str:Codelist agencyID="SDMX" id="CL_FREQ" version="1.0.0" &nbsp;**
29 +[[image:1747386478432-897.png]]
102 102  
103 -**urn="urn:sdmx:org.sdmx.infomodel.codelist.Codelist=SDMX:CL_FREQ(1.0.0)">**
104 -
105 -**<com:Name xml:lang="en">Frequency</com:Name>**
106 -
107 -**</str:Codelist>**
108 -
109 -**<str:Codelist agencyID="AA" id="CL_FREQ" version="1.0.0" &nbsp;**
110 -
111 -**urn="urn:sdmx:org.sdmx.infomodel.codelist.Codelist=AA:CL_FREQ(1.0.0)">**
112 -
113 -**<com:Name xml:lang="en">Frequency</com:Name>**
114 -
115 -**</str:Codelist>**
116 -
117 -**<str:Codelist agencyID="AA.CC" id="CL_FREQ" version="1.0.0" &nbsp;**
118 -
119 -**urn="urn:sdmx:org.sdmx.infomodel.codelist.Codelist=AA.CC:CL_FREQ(1.0.0)">**
120 -
121 -**<com:Name xml:lang="en">Frequency</com:Name>**
122 -
123 -**</str:Codelist>**
124 -
125 -**<str:Codelist agencyID="BB.CC" id="CL_FREQ" version="1.0.0" &nbsp;&nbsp;&nbsp; urn="urn:sdmx:org.sdmx.infomodel.codelist.Codelist=BB.CC:CL_FREQ(1.0.0)">**
126 -
127 -|(((
128 -**<com:Name xml:lang="en">Frequency</com:Name> &nbsp;&nbsp;&nbsp;**
129 -
130 -**</str:Codelist> &nbsp;&nbsp;&nbsp;**
131 -)))
132 -
133 -
134 -
135 -
136 136  **Figure 18: Example Showing Use of Agency Identifiers**
137 137  
138 138  Each of these maintenance agencies has a Codelist with an identical id 'CL_FREQ'.
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