Skip to Content
Last modified by Elena on 2025/09/10 11:19
From version 3.4
edited by Helena
on 2025/07/02 15:55
Change comment: There is no comment for this version
To version 3.3
edited by Helena
on 2025/07/02 15:54
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -379,45 +379,45 @@
379 379  
380 380  **Schema:** Refers to the format specific schema in general, and in particular the root xs:schema element of that schema file.
381 381  
382 -**Global Element:** Refers to an element definition at the top (% style="color:#e74c3c" %)level(%%) of the schema (i.e. an xs:element element in the root xs:schema element). It will define a name and type (name and type [[attributes>>doc:sdmx:Glossary.Attribute.WebHome]]) and possibly a substitution group (substitutionGroup [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]).
382 +**Global Element:** Refers to an element definition at the top level of the schema (i.e. an xs:element element in the root xs:schema element). It will define a name and type (name and type attributes) and possibly a substitution group (substitutionGroup attribute).
383 383  
384 -**Local Element:** Refers to an element definition within a complex type (i.e. an xs:element element contained within a xs:sequence element that is contained in a xs:complexType element). A local element must define a name and type (name and type [[attributes>>doc:sdmx:Glossary.Attribute.WebHome]]) and may also specify a minimum and maximum occurrence (minOccurs and maxOccurs [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]).
384 +**Local Element:** Refers to an element definition within a complex type (i.e. an xs:element element contained within a xs:sequence element that is contained in a xs:complexType element). A local element must define a name and type (name and type attributes) and may also specify a minimum and maximum occurrence (minOccurs and maxOccurs attribute).
385 385  
386 386  **Qualified/Unqualified Element:** A qualified element is an element that must be referred to by the namespace in which it was defined. An unqualified element does not have a namespace associated with it. The structure-specific schemas make use of unqualified elements to that the structure-specific schemas can restrict the base content to meet the specific needs of the structure, while maintaining as much of the original document structure as possible.
387 387  
388 -**Element Reference:** Refers to an element definition within a complex type that is a reference to a global element (i.e. an xs:element element contained within a xs:sequence element that is contained in a xs:complexType element). An element reference must reference a global element (via its ref [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]) and may also specify a minimum and maximum occurrence (minOccurs and maxOccurs [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]).
388 +**Element Reference:** Refers to an element definition within a complex type that is a reference to a global element (i.e. an xs:element element contained within a xs:sequence element that is contained in a xs:complexType element). An element reference must reference a global element (via its ref attribute) and may also specify a minimum and maximum occurrence (minOccurs and maxOccurs attribute).
389 389  
390 -**Complex Type:** Refers to a complex type definition. In this context, all complex type definitions occur at the top (% style="color:#e74c3c" %)level(%%) of the schema (i.e. an xs:complexType element in the root xs:schema element). A complex type must define a name (name [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]) and may be made abstract (via the abstract [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]’s boolean value).
390 +**Complex Type:** Refers to a complex type definition. In this context, all complex type definitions occur at the top level of the schema (i.e. an xs:complexType element in the root xs:schema element). A complex type must define a name (name attribute) and may be made abstract (via the abstract attribute’s boolean value).
391 391  
392 -**Simple Type:** Refers to a simple type definition. In this context, all simple type definitions occur at the top (% style="color:#e74c3c" %)level(%%) of the schema (i.e. an xs:simpleType element in the root xs:schema element). In this context, a simple type will always be defined via a restriction (an xs:restriction element in the xs:simpleType element). The restriction will reference a base type.
392 +**Simple Type:** Refers to a simple type definition. In this context, all simple type definitions occur at the top level of the schema (i.e. an xs:simpleType element in the root xs:schema element). In this context, a simple type will always be defined via a restriction (an xs:restriction element in the xs:simpleType element). The restriction will reference a base type.
393 393  
394 394  **Anonymous Type:** A complex or simple type definition which occurs within an element definition. The method is sometimes referred to a the "Russian-doll" technique as it creates nested constructs. Anonymous types are not given names and cannot be abstract. The can however, be derived from other types.
395 395  
396 396  **Content Group:** A group which defines a content model for reuse. This is contained in the xs:group element and is defined at the root of the schema. It allows for a common sequence or choice of elements to be reused across multiple types without having to redefine the sequence or choice in each type.
397 397  
398 -**Uniqueness (% style="color:#e74c3c" %)Constraint(%%):** A uniqueness (% style="color:#e74c3c" %)constraint(%%) is defined within an element and is used to force descendent elements to be unique based on some criteria of it fields (elements or [[attributes>>doc:sdmx:Glossary.Attribute.WebHome]]). This is defined in an \<xs:unique\> element and has content of an \<xs:selector\> and multiple \<xs:field\> elements. The selector designates the descendants that must be unique (with an xpath [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]) and the field specifies which property of the selected element must be unique (also with an xpath [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]])
398 +**Uniqueness Constraint:** A uniqueness constraint is defined within an element and is used to force descendent elements to be unique based on some criteria of it fields (elements or attributes). This is defined in an \<xs:unique\> element and has content of an \<xs:selector\> and multiple \<xs:field\> elements. The selector designates the descendants that must be unique (with an xpath attribute) and the field specifies which property of the selected element must be unique (also with an xpath attribute)
399 399  
400 -**Extension:** Refers to the definition of a complex type that is an extension of another complex type. The extension will always make a reference to a base. In the schema, this is defined within the xs:complexType element as a child xs:complexContent element containing an xs:extension element (with a base [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]).
400 +**Extension:** Refers to the definition of a complex type that is an extension of another complex type. The extension will always make a reference to a base. In the schema, this is defined within the xs:complexType element as a child xs:complexContent element containing an xs:extension element (with a base attribute).
401 401  
402 -**Restriction:** Refers to the definition of a simple or complex type that is a restriction of another type of the same variety. The restriction will always make a reference to a base. In the schema, this is defined with an xs:restriction element (with a base [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]).
402 +**Restriction:** Refers to the definition of a simple or complex type that is a restriction of another type of the same variety. The restriction will always make a reference to a base. In the schema, this is defined with an xs:restriction element (with a base attribute).
403 403  
404 -**Sequence:** Refers to a sequence of elements that may be defined as the root of a complex type content model, or as part of the content of a choice or another sequence. This is defined as an xs:sequence element. The sequence may specify a minimum and maximum occurrence (minOccurs and maxOccurs [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]).
404 +**Sequence:** Refers to a sequence of elements that may be defined as the root of a complex type content model, or as part of the content of a choice or another sequence. This is defined as an xs:sequence element. The sequence may specify a minimum and maximum occurrence (minOccurs and maxOccurs attribute).
405 405  
406 -**Choice:** Refers to a choice of elements that may be defined as the root of a complex type content model, or as part of the content of a sequence or another choice. This is defined as an xs:choice element. The sequence may specify a minimum and maximum occurrence (minOccurs and maxOccurs [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]).
406 +**Choice:** Refers to a choice of elements that may be defined as the root of a complex type content model, or as part of the content of a sequence or another choice. This is defined as an xs:choice element. The sequence may specify a minimum and maximum occurrence (minOccurs and maxOccurs attribute).
407 407  
408 -**[[Facet>>doc:sdmx:Glossary.Facet.WebHome]]:** Refers to a single detail of a simple type restriction. This is represented by elements such as xs:minInclusive, xs:totalDigits, xs:minLength, and is contained in the xs:restriction element of a simple type definition. The value of the [[facet>>doc:sdmx:Glossary.Facet.WebHome]] is contained in a value [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] of the particular element.
408 +**Facet:** Refers to a single detail of a simple type restriction. This is represented by elements such as xs:minInclusive, xs:totalDigits, xs:minLength, and is contained in the xs:restriction element of a simple type definition. The value of the facet is contained in a value attribute of the particular element.
409 409  
410 -**Enumeration:** Refers to an enumerated value of a simple type definition. It is represented by an xs:enumeration element contained within an xs:restriction element of a simple type definition. An enumeration defines a value (in the value [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]) and documentation (in xs:documentation elements contained in an xs:[[annotation>>doc:sdmx:Glossary.Annotation.WebHome]] element).
410 +**Enumeration:** Refers to an enumerated value of a simple type definition. It is represented by an xs:enumeration element contained within an xs:restriction element of a simple type definition. An enumeration defines a value (in the value attribute) and documentation (in xs:documentation elements contained in an xs:annotation element).
411 411  
412 -**XML [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]]:** Refers to the definition of an XML [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] for a complex type (i.e. and xs:[[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] element in a xs:complexType element). An [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] must define a name and type (name and type [[attributes>>doc:sdmx:Glossary.Attribute.WebHome]]) and may also specify a usage (use [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]).
412 +**XML Attribute:** Refers to the definition of an XML attribute for a complex type (i.e. and xs:attribute element in a xs:complexType element). An attribute must define a name and type (name and type attributes) and may also specify a usage (use attribute).
413 413  
414 414  == 3.2 Namespace Rules ==
415 415  
416 -Each format specific schema will specify its namespace in the target namespace of the schema (the targetNamespace [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] of the schema). This document also assumes that the root namespace (that which is defined by the xmlns [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]) of the schema will be the same as the target namespace. Therefore, any types or global elements referenced in these descriptions without a namespace prefix are assumed to be in the format specific namespace.
416 +Each format specific schema will specify its namespace in the target namespace of the schema (the targetNamespace attribute of the schema). This document also assumes that the root namespace (that which is defined by the xmlns attribute) of the schema will be the same as the target namespace. Therefore, any types or global elements referenced in these descriptions without a namespace prefix are assumed to be in the format specific namespace.
417 417  
418 418  The format specific schemas will incorporate the core format namespace and the common namespace by importing the schemas (via the xs:import element). If necessary, additional namespaces may be imported and referenced.
419 419  
420 -For the purpose of the descriptions here, the default element form for the schema (as specified in the elementFormDefault [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] of the schema) is "qualified", and the default [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] form (as specified in the attributeFormDefault [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] of the schema) is "unqualified".
420 +For the purpose of the descriptions here, the default element form for the schema (as specified in the elementFormDefault attribute of the schema) is "qualified", and the default attribute form (as specified in the attributeFormDefault attribute of the schema) is "unqualified".
421 421  
422 422  == 3.3 General Rules ==
423 423