ISO 10303-28:2007
Industrial automation systems and integration — Product data representation and exchange — Part 28: Implementation methods: XML representations of EXPRESS schemas and data, using XML schemas
ISO 10303-28:2007 specifies the way in which an XML representation described by an XML schema can be used in the exchange of data that is described by an EXPRESS schema.
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1 Scope
2 Normative references
3 Terms, definitions, abbreviations, and conventions
3.1 Terms defined in ISO 10303-1
3.2 Terms defined in ISO 10303-11
3.3 Terms defined in the XML Standards
3.4 Other terms and definitions
3.5 Conflicting terminology
3.6 Abbreviations
3.7 Conventions
3.7.1 Text conventions
3.7.2 Namespace conventions
4 Conformance
4.1 Conformance of an XML document
4.1.1 Conformance of an iso-10303-28 document
4.1.2 Conformance of a uos document
4.1.3 Conformance of a configured document
4.2 Conformance of a derived XML schema document
4.3 Conformance of a configuration file
4.4 Conformance of a pre-processor
4.5 Conformance of a post-processor
4.6 Conformance of an XML schema generator
5 Document level elements
5.1 The iso-10303-28 document
5.2 Document and uos header information
5.2.1 The exp:header element
5.2.2 The name element
5.2.3 The time_stamp element
5.2.4 The author element
5.2.5 The organization element
5.2.6 The authorization element
5.2.7 The originating_system element
5.2.8 The preprocessor_version element
5.3 The schema_population element
5.4 The express element
5.4.1 By-reference representation of an EXPRESS schema
5.4.2 By-value representation of an EXPRESS schema
5.5 The configuration element
5.6 The unit of serialization element
5.7 The uos document
5.8 The configured document
5.9 Enterprise data objects
6 Derived XML Schema
6.1 Preconditions
6.2 Unmapped EXPRESS concepts
6.3 Abstract entity data types
7 Default XML Schema Binding
7.1 Naming conventions
7.1.1 Schema
7.1.2 EXPRESS identifiers
7.1.3 Data types
7.2 XML Schema data types corresponding to EXPRESS data types
7.2.1 EXPRESS simple data types
7.2.1.1 BINARY data type
7.2.1.1.1 Constrained BINARY data types
7.2.1.2 BOOLEAN data type
7.2.1.3 INTEGER data type
7.2.1.4 LOGICAL data type
7.2.1.5 NUMBER data type
7.2.1.6 REAL data type
7.2.1.7 STRING data type
7.2.1.7.1 Constrained STRING data types
7.2.2 Aggregation data types
7.2.2.1 XML attributes for aggregation data types
7.2.2.2 Sequence-of-elements form of aggregates
7.2.2.3 List-of-values form of aggregates
7.2.2.3.1 Simple list type supporting aggregations
7.2.2.3.2 Unrestricted complexType supporting aggregations
7.2.2.4 Aggregates of aggregation data types
7.2.2.5 Aggregates of ENUMERATION data types
7.2.2.6 Aggregates of SELECT data types
7.2.2.7 Aggregates of ENTITY data types
7.2.3 Constructed data types
7.2.3.1 ENUMERATION data types
7.2.3.2 SELECT data types
7.2.4 Defined data types
7.2.5 ENTITY data types
7.3 XML Schema definitions and declarations for EXPRESS defined data types
7.3.1 Simple underlying types
7.3.1.1 Definitions for BINARY data types
7.3.1.2 Definitions for BOOLEAN, INTEGER, LOGICAL, NUMBER or REAL
7.3.1.3 Definitions for STRING data types
7.3.2 Aggregate underlying types
7.3.3 ENUMERATION underlying types
7.3.4 SELECT underlying types
7.3.4.1 Working select list
7.3.4.2 XML group declaration for SELECT data types
7.3.4.3 XML data type definition for SELECT data types
7.3.5 Defined data type underlying type
7.4 Instance elements corresponding to EXPRESS data types
7.4.1 Instance elements for simple data types
7.4.1.1 BINARY data type
7.4.1.1.1 Constrained BINARY instance element
7.4.1.2 BOOLEAN data type
7.4.1.3 INTEGER data type
7.4.1.4 LOGICAL data type
7.4.1.5 NUMBER data type
7.4.1.6 REAL data types
7.4.1.7 STRING data type
7.4.1.7.1 Constrained STRING instance element
7.4.2 Instance elements for anonymous aggregation data types
7.4.2.1 Instance elements for list-of-values forms
7.4.2.2 Instance elements for all sequence-of-elements forms
7.4.3 Instance elements for defined data types
7.4.4 Instance elements for entity data types
7.4.5 Instance element attributes
7.4.6 Referenceable instances
7.5 XML Schema definitions and declarations for EXPRESS entity data types
7.5.1 Type graph associated with the EXPRESS entity data type
7.5.2 Complex entity instances
7.5.3 Base XML data types and elements for EXPRESS entity data types
7.5.3.1 Base XML data type for entity data types – exp:Entity
7.5.3.2 Base XML data type for proxy elements – exp:edokey
7.5.3.3 Instance element for complex entity instances – exp:complexEntity
7.5.3.4 Base XML data type and element for single entity values – exp:Single-Entity
7.5.4 XML data type definitions for entity data types
7.5.5 Instance elements corresponding to entity data types
7.5.6 XML groups corresponding to entity data types
7.5.6.1 subtypes group
7.5.6.2 complexEntity group
7.5.7 Single entity value elements corresponding to entity data types
7.5.8 Proxy elements corresponding to entity data types
7.5.9 XML Uniqueness constraints for entity data types
7.6 XML Schema declarations for EXPRESS attributes
7.6.1 Accessor element and attribute naming
7.6.2 EXPRESS attributes mapped to XML schema
7.6.2.1 Explicit attributes
7.6.2.2 INVERSE and DERIVEd attributes
7.6.2.3 Redeclared attributes
7.6.2.4 Generic attributes
7.6.3 Accessor elements
7.6.3.1 Attribute whose data type is not an entity data type
7.6.3.2 Attribute whose data type is an entity data type
7.7 XML Schema and namespaces for EXPRESS Schema
7.7.1 Namespace prefixes
7.7.2 URI for the target namespace of the derived XML schema
7.7.3 Namespace declarations for the derived XML schema
7.7.4 Import declarations for the derived XML schema
7.8 Context-schema specific unit of serialization
8 Configured XML Schema Binding
8.1 Naming conventions
8.1.1 Schema
8.1.2 EXPRESS identifiers
8.1.3 Data types
8.2 XML Schema data types corresponding to EXPRESS data types
8.2.1 EXPRESS simple data types
8.2.1.1 BINARY data type
8.2.1.1.1 Constrained BINARY data types
8.2.1.2 BOOLEAN data type
8.2.1.3 INTEGER data type
8.2.1.4 LOGICAL data type
8.2.1.5 NUMBER data type
8.2.1.6 REAL data type
8.2.1.7 STRING data type
8.2.1.7.1 Constrained STRING data types
8.2.2 Aggregation data types
8.2.2.1 XML attributes for aggregation data types
8.2.2.2 Sequence-of-elements form of aggregates
8.2.2.3 List-of-values form of aggregates
8.2.2.3.1 Simple list type supporting aggregations
8.2.2.3.2 List of values form for XML elements
8.2.2.3.3 Unrestricted complexType supporting aggregations
8.2.2.3.4 List of values form for accessor attributes
8.2.2.4 Aggregates of aggregation data types
8.2.2.4.1 The sequence-of-rows structure
8.2.2.4.2 The multi-dimensional array structure
8.2.2.5 Aggregates of ENUMERATION data types
8.2.2.6 Aggregates of SELECT data types
8.2.2.7 Aggregates of defined data types
8.2.2.8 Aggregates of ENTITY data types
8.2.2.8.1 List of references form
8.2.2.8.2 Sequence of entity instance elements form
8.2.3 Constructed data types
8.2.3.1 ENUMERATION data types
8.2.3.2 SELECT data types
8.2.4 Defined data types
8.2.5 ENTITY data types
8.3 XML Schema definitions and declarations for EXPRESS defined data types
8.3.1 Simple underlying types
8.3.1.1 Definitions for BINARY data types
8.3.1.2 Definitions for BOOLEAN, INTEGER, LOGICAL, NUMBER or REAL
8.3.1.3 Definitions for STRING data types
8.3.2 Aggregate underlying types
8.3.3 ENUMERATION underlying types
8.3.4 SELECT underlying types
8.3.4.1 Working select list
8.3.4.2 XML group declaration for SELECT data types
8.3.4.3 XML data type definition for SELECT data types
8.3.4.4 XML identity constraints for SELECT data types
8.3.5 Defined data type underlying type
8.3.6 Defined data types mapped by map configuration directive
8.4 Instance elements corresponding to EXPRESS data types
8.4.1 Instance elements for simple data types
8.4.1.1 BINARY data type
8.4.1.1.1 Constrained BINARY instance element
8.4.1.2 BOOLEAN data type
8.4.1.3 INTEGER data type
8.4.1.4 LOGICAL data type
8.4.1.5 NUMBER and REAL data types
8.4.1.6 STRING data type
8.4.1.6.1 Constrained STRING instance element
8.4.1.6.2 XML data types for EXPRESS STRING data types
8.4.2 Instance elements for anonymous aggregation data types
8.4.2.1 Instance elements for list-of-values form
8.4.2.2 Instance elements for all sequence-of-elements forms
8.4.2.3 Instance elements for list-of-references form
8.4.3 Instance elements for defined data types
8.4.4 Instance elements for entity data types
8.4.5 Instance element attributes
8.4.6 XML identity-constraints for instance elements
8.4.6.1 Key definitions for non-entity instance elements
8.4.6.2 Key definitions for simple data types
8.4.6.3 Keyref definitions for by-reference instance elements
8.4.7 Referenceable instances
8.4.7.1 Referenceable entity instances
8.4.7.2 Referenceable non-entity instances
8.5 XML Schema definitions and declarations for EXPRESS entity data types
8.5.1 Type graph associated with the EXPRESS entity data type
8.5.2 Complex entity instances
8.5.3 Base XML data types and elements for EXPRESS entity data types
8.5.3.1 Base XML data type for entity data types – exp:Entity
8.5.3.2 Base XML data type for proxy elements – exp:edokey
8.5.3.3 The generic entity data type and instance element
8.5.3.4 The root entity data type and instance element
8.5.3.5 Instance element for complex entity instances – exp:complexEntity
8.5.3.6 Base XML data type and element for single entity values – exp:Single-Entity
8.5.4 XML data type definitions for entity data types
8.5.4.1 Inheritance-free data type definitions
8.5.4.2 Inheritance structures without redeclarations
8.5.4.3 Inheritance structures with redeclarations only
8.5.4.4 Inheritance structures with additional and redeclared attributes
8.5.4.5 Synthetic entity data type definitions
8.5.5 Instance elements corresponding to entity data types
8.5.6 XML groups corresponding to entity data types
8.5.6.1 subtypes group
8.5.6.2 complexEntity groups corresponding to entity data types
8.5.7 Single entity value elements corresponding to entity data types
8.5.8 Proxy elements corresponding to entity data types
8.5.9 XML Identity constraints corresponding to entity data types
8.5.9.1 Key definitions for entity instance elements
8.5.9.2 Keyref definitions for entity instance elements
8.5.10 XML Uniqueness constraints for entity data types
8.5.11 Dynamic subtype elements corresponding to entity data types
8.6 XML Schema declarations for EXPRESS attributes
8.6.1 Accessor element and attribute naming
8.6.2 EXPRESS attributes mapped to XML schema
8.6.2.1 Explicit attributes
8.6.2.2 INVERSE attributes
8.6.2.3 DERIVEd attributes
8.6.2.4 Redeclared attributes
8.6.2.5 Generic attributes
8.6.3 Accessor attributes
8.6.3.1 Keyref definitions for accessor attributes
8.6.4 Accessor elements
8.6.4.1 Attribute-tagged attribute whose data type is not an entity data type
8.6.4.2 Attribute-tagged attributes whose data type is an entity data type
8.6.5 Type-tagged attributes
8.6.6 No-tag attributes
8.7 XML Schema and namespaces for EXPRESS Schema
8.7.1 Namespace prefixes
8.7.2 URI for the target namespace of the derived XML schema
8.7.3 Namespace declarations for the derived XML schema
8.7.4 Import declarations for the derived XML schema
8.8 Context-schema specific unit of serialization
9 XML document creation
9.1 Preconditions
9.2 General XML document structure
9.2.1 Structure of an iso-10303-28 document
9.2.2 Structure of a uos document
9.2.3 Encoding of EXPRESS schemas
9.2.4 Encoding of configuration files
9.2.5 Encoding of population definitions
9.2.6 Encoding of data sets – the unit of serialization
9.3 Representation of EXPRESS entity instances
9.3.1 By-value representation of entity instances
9.3.2 External representation of EXPRESS entity instances
9.3.3 By-reference representation of EXPRESS entity instances
9.3.4 Complex entity representation of EXPRESS entity instances
9.4 Representation of an EXPRESS attribute
9.4.1 Determining by-reference or by-value representation
9.4.2 Representation of EXPRESS attribute value as accessor attribute
9.4.3 Attribute-tag representation of EXPRESS attribute value
9.4.4 Double-tag representation of EXPRESS attribute value
9.4.5 Type tag representation of EXPRESS attribute value
9.4.6 No-tag representation of entity instance as EXPRESS attribute value
9.4.7 No-tag-simple representation of entity instance as EXPRESS attribute value
9.5 Representation of simple values
9.5.1 Representation of BINARY values
9.5.2 Representation of BOOLEAN values
9.5.3 Representation of INTEGER values
9.5.4 Representation of LOGICAL values
9.5.5 Representation of NUMBER values
9.5.6 Representation of REAL values
9.5.7 Representation of STRING values
9.6 Representation of enumeration items
9.7 Representation of values of SELECT types
9.8 Representation of aggregate values
9.8.1 List-of-values representation of aggregate values
9.8.2 Sequence-of-elements representation of aggregate values
9.8.3 Indexed representation of aggregate values
9.8.4 List-of-references representation of aggregate values
9.8.5 Aggregates of aggregate values
9.8.6 Aggregates of values of defined data types
9.8.7 Instance elements for component values
9.9 Representation of values of defined data types
9.10 Representation of values in instance elements
9.10.1 By-value instance elements for non-entity data types
9.10.2 By-reference instance elements for non-entity data types
10 Configuration Language
10.1 The configuration element
10.1.1 By-reference representation of a configuration file
10.1.2 By-value representation of a configuration file
10.2 Configuration options
10.2.1 name
10.2.2 exp-type
10.2.3 content
10.2.4 aggregate-content
10.2.5 exp-attribute
10.2.6 entity-attribute
10.2.7 concrete-attribute
10.2.8 tagless
10.2.9 flatten
10.2.10 use-id
10.2.11 keep
10.2.12 keep-all
10.2.13 map
10.2.14 naming-convention
10.2.15 inheritance
10.2.16 notation
10.2.17 tag-source and tag-value
10.2.18 namespace
10.2.19 ref
10.2.20 use
10.2.21 implementation
10.2.22 facet
10.2.23 generate-keys
10.2.24 embed-schema-items
10.2.25 alias and prefix
10.2.26 select
10.3 Scoping elements
10.3.1 Option element
10.3.2 Type element
10.3.3 Entity element
10.3.4 Attribute element
10.3.5 Inverse element
10.3.6 Aggregate element
10.3.7 Schema element
10.3.8 UosElement element
10.3.9 UosEntity element
10.3.10 RootEntity element
10.4 Configuration attributes
10.5 Applicability of configuration directives
10.5.1 exp-attribute
10.5.2 content and use-id
10.5.3 exp-type
10.5.4 map
10.5.5 tagless
10.5.6 flatten
10.5.7 inheritance
10.5.8 notation
10.5.9 keep
10.5.10 ref
10.5.11 use
10.5.12 implementation
10.5.13 facet
Annex A (normative) Universal Resource Names for bindings of EXPRESS schemas
A.1 URN for Base XML Schema
A.2 URN for Configuration Language Schema
A.3 URN for Document Schema
A.4 URNs for EXPRESS schemas with registered object-identifiers
Annex B (normative) XML Schema for the configuration language
Annex C (normative) Base XML Schema
Annex D (normative) Document Schema
Annex E (normative) Valid populations of EXPRESS entity instances
E.1 Reference validity
E.1.1 Schema identity method
E.1.2 EXPRESS interface specification method
E.1.3 SDAI domain equivalence method
E.2 Determining population of a schema
E.2.1 Section boundary method
E.2.2 Include all compatible method
E.2.3 Include referenced instance method
Annex F (normative) Information object registration
F.1 Object identifier for Base XML Schema
F.2 Object identifier for Configuration Language Schema
F.3 Object identifier for Document Schema
Annex G (informative) Configuration language examples
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1 Scope
2 Normative references
3 Terms, definitions, abbreviations, and conventions
3.1 Terms defined in ISO 10303-1
3.2 Terms defined in ISO 10303-11
3.3 Terms defined in the XML Standards
3.4 Other terms and definitions
3.5 Conflicting terminology
3.6 Abbreviations
3.7 Conventions
3.7.1 Text conventions
3.7.2 Namespace conventions
4 Conformance
4.1 Conformance of an XML document
4.1.1 Conformance of an iso-10303-28 document
4.1.2 Conformance of a uos document
4.1.3 Conformance of a configured document
4.2 Conformance of a derived XML schema document
4.3 Conformance of a configuration file
4.4 Conformance of a pre-processor
4.5 Conformance of a post-processor
4.6 Conformance of an XML schema generator
5 Document level elements
5.1 The iso-10303-28 document
5.2 Document and uos header information
5.2.1 The exp:header element
5.2.2 The name element
5.2.3 The time_stamp element
5.2.4 The author element
5.2.5 The organization element
5.2.6 The authorization element
5.2.7 The originating_system element
5.2.8 The preprocessor_version element
5.3 The schema_population element
5.4 The express element
5.4.1 By-reference representation of an EXPRESS schema
5.4.2 By-value representation of an EXPRESS schema
5.5 The configuration element
5.6 The unit of serialization element
5.7 The uos document
5.8 The configured document
5.9 Enterprise data objects
6 Derived XML Schema
6.1 Preconditions
6.2 Unmapped EXPRESS concepts
6.3 Abstract entity data types
7 Default XML Schema Binding
7.1 Naming conventions
7.1.1 Schema
7.1.2 EXPRESS identifiers
7.1.3 Data types
7.2 XML Schema data types corresponding to EXPRESS data types
7.2.1 EXPRESS simple data types
7.2.1.1 BINARY data type
7.2.1.1.1 Constrained BINARY data types
7.2.1.2 BOOLEAN data type
7.2.1.3 INTEGER data type
7.2.1.4 LOGICAL data type
7.2.1.5 NUMBER data type
7.2.1.6 REAL data type
7.2.1.7 STRING data type
7.2.1.7.1 Constrained STRING data types
7.2.2 Aggregation data types
7.2.2.1 XML attributes for aggregation data types
7.2.2.2 Sequence-of-elements form of aggregates
7.2.2.3 List-of-values form of aggregates
7.2.2.3.1 Simple list type supporting aggregations
7.2.2.3.2 Unrestricted complexType supporting aggregations
7.2.2.4 Aggregates of aggregation data types
7.2.2.5 Aggregates of ENUMERATION data types
7.2.2.6 Aggregates of SELECT data types
7.2.2.7 Aggregates of ENTITY data types
7.2.3 Constructed data types
7.2.3.1 ENUMERATION data types
7.2.3.2 SELECT data types
7.2.4 Defined data types
7.2.5 ENTITY data types
7.3 XML Schema definitions and declarations for EXPRESS defined data types
7.3.1 Simple underlying types
7.3.1.1 Definitions for BINARY data types
7.3.1.2 Definitions for BOOLEAN, INTEGER, LOGICAL, NUMBER or REAL
7.3.1.3 Definitions for STRING data types
7.3.2 Aggregate underlying types
7.3.3 ENUMERATION underlying types
7.3.4 SELECT underlying types
7.3.4.1 Working select list
7.3.4.2 XML group declaration for SELECT data types
7.3.4.3 XML data type definition for SELECT data types
7.3.5 Defined data type underlying type
7.4 Instance elements corresponding to EXPRESS data types
7.4.1 Instance elements for simple data types
7.4.1.1 BINARY data type
7.4.1.1.1 Constrained BINARY instance element
7.4.1.2 BOOLEAN data type
7.4.1.3 INTEGER data type
7.4.1.4 LOGICAL data type
7.4.1.5 NUMBER data type
7.4.1.6 REAL data types
7.4.1.7 STRING data type
7.4.1.7.1 Constrained STRING instance element
7.4.2 Instance elements for anonymous aggregation data types
7.4.2.1 Instance elements for list-of-values forms
7.4.2.2 Instance elements for all sequence-of-elements forms
7.4.3 Instance elements for defined data types
7.4.4 Instance elements for entity data types
7.4.5 Instance element attributes
7.4.6 Referenceable instances
7.5 XML Schema definitions and declarations for EXPRESS entity data types
7.5.1 Type graph associated with the EXPRESS entity data type
7.5.2 Complex entity instances
7.5.3 Base XML data types and elements for EXPRESS entity data types
7.5.3.1 Base XML data type for entity data types – exp:Entity
7.5.3.2 Base XML data type for proxy elements – exp:edokey
7.5.3.3 Instance element for complex entity instances – exp:complexEntity
7.5.3.4 Base XML data type and element for single entity values – exp:Single-Entity
7.5.4 XML data type definitions for entity data types
7.5.5 Instance elements corresponding to entity data types
7.5.6 XML groups corresponding to entity data types
7.5.6.1 subtypes group
7.5.6.2 complexEntity group
7.5.7 Single entity value elements corresponding to entity data types
7.5.8 Proxy elements corresponding to entity data types
7.5.9 XML Uniqueness constraints for entity data types
7.6 XML Schema declarations for EXPRESS attributes
7.6.1 Accessor element and attribute naming
7.6.2 EXPRESS attributes mapped to XML schema
7.6.2.1 Explicit attributes
7.6.2.2 INVERSE and DERIVEd attributes
7.6.2.3 Redeclared attributes
7.6.2.4 Generic attributes
7.6.3 Accessor elements
7.6.3.1 Attribute whose data type is not an entity data type
7.6.3.2 Attribute whose data type is an entity data type
7.7 XML Schema and namespaces for EXPRESS Schema
7.7.1 Namespace prefixes
7.7.2 URI for the target namespace of the derived XML schema
7.7.3 Namespace declarations for the derived XML schema
7.7.4 Import declarations for the derived XML schema
7.8 Context-schema specific unit of serialization
8 Configured XML Schema Binding
8.1 Naming conventions
8.1.1 Schema
8.1.2 EXPRESS identifiers
8.1.3 Data types
8.2 XML Schema data types corresponding to EXPRESS data types
8.2.1 EXPRESS simple data types
8.2.1.1 BINARY data type
8.2.1.1.1 Constrained BINARY data types
8.2.1.2 BOOLEAN data type
8.2.1.3 INTEGER data type
8.2.1.4 LOGICAL data type
8.2.1.5 NUMBER data type
8.2.1.6 REAL data type
8.2.1.7 STRING data type
8.2.1.7.1 Constrained STRING data types
8.2.2 Aggregation data types
8.2.2.1 XML attributes for aggregation data types
8.2.2.2 Sequence-of-elements form of aggregates
8.2.2.3 List-of-values form of aggregates
8.2.2.3.1 Simple list type supporting aggregations
8.2.2.3.2 List of values form for XML elements
8.2.2.3.3 Unrestricted complexType supporting aggregations
8.2.2.3.4 List of values form for accessor attributes
8.2.2.4 Aggregates of aggregation data types
8.2.2.4.1 The sequence-of-rows structure
8.2.2.4.2 The multi-dimensional array structure
8.2.2.5 Aggregates of ENUMERATION data types
8.2.2.6 Aggregates of SELECT data types
8.2.2.7 Aggregates of defined data types
8.2.2.8 Aggregates of ENTITY data types
8.2.2.8.1 List of references form
8.2.2.8.2 Sequence of entity instance elements form
8.2.3 Constructed data types
8.2.3.1 ENUMERATION data types
8.2.3.2 SELECT data types
8.2.4 Defined data types
8.2.5 ENTITY data types
8.3 XML Schema definitions and declarations for EXPRESS defined data types
8.3.1 Simple underlying types
8.3.1.1 Definitions for BINARY data types
8.3.1.2 Definitions for BOOLEAN, INTEGER, LOGICAL, NUMBER or REAL
8.3.1.3 Definitions for STRING data types
8.3.2 Aggregate underlying types
8.3.3 ENUMERATION underlying types
8.3.4 SELECT underlying types
8.3.4.1 Working select list
8.3.4.2 XML group declaration for SELECT data types
8.3.4.3 XML data type definition for SELECT data types
8.3.4.4 XML identity constraints for SELECT data types
8.3.5 Defined data type underlying type
8.3.6 Defined data types mapped by map configuration directive
8.4 Instance elements corresponding to EXPRESS data types
8.4.1 Instance elements for simple data types
8.4.1.1 BINARY data type
8.4.1.1.1 Constrained BINARY instance element
8.4.1.2 BOOLEAN data type
8.4.1.3 INTEGER data type
8.4.1.4 LOGICAL data type
8.4.1.5 NUMBER and REAL data types
8.4.1.6 STRING data type
8.4.1.6.1 Constrained STRING instance element
8.4.1.6.2 XML data types for EXPRESS STRING data types
8.4.2 Instance elements for anonymous aggregation data types
8.4.2.1 Instance elements for list-of-values form
8.4.2.2 Instance elements for all sequence-of-elements forms
8.4.2.3 Instance elements for list-of-references form
8.4.3 Instance elements for defined data types
8.4.4 Instance elements for entity data types
8.4.5 Instance element attributes
8.4.6 XML identity-constraints for instance elements
8.4.6.1 Key definitions for non-entity instance elements
8.4.6.2 Key definitions for simple data types
8.4.6.3 Keyref definitions for by-reference instance elements
8.4.7 Referenceable instances
8.4.7.1 Referenceable entity instances
8.4.7.2 Referenceable non-entity instances
8.5 XML Schema definitions and declarations for EXPRESS entity data types
8.5.1 Type graph associated with the EXPRESS entity data type
8.5.2 Complex entity instances
8.5.3 Base XML data types and elements for EXPRESS entity data types
8.5.3.1 Base XML data type for entity data types – exp:Entity
8.5.3.2 Base XML data type for proxy elements – exp:edokey
8.5.3.3 The generic entity data type and instance element
8.5.3.4 The root entity data type and instance element
8.5.3.5 Instance element for complex entity instances – exp:complexEntity
8.5.3.6 Base XML data type and element for single entity values – exp:Single-Entity
8.5.4 XML data type definitions for entity data types
8.5.4.1 Inheritance-free data type definitions
8.5.4.2 Inheritance structures without redeclarations
8.5.4.3 Inheritance structures with redeclarations only
8.5.4.4 Inheritance structures with additional and redeclared attributes
8.5.4.5 Synthetic entity data type definitions
8.5.5 Instance elements corresponding to entity data types
8.5.6 XML groups corresponding to entity data types
8.5.6.1 subtypes group
8.5.6.2 complexEntity groups corresponding to entity data types
8.5.7 Single entity value elements corresponding to entity data types
8.5.8 Proxy elements corresponding to entity data types
8.5.9 XML Identity constraints corresponding to entity data types
8.5.9.1 Key definitions for entity instance elements
8.5.9.2 Keyref definitions for entity instance elements
8.5.10 XML Uniqueness constraints for entity data types
8.5.11 Dynamic subtype elements corresponding to entity data types
8.6 XML Schema declarations for EXPRESS attributes
8.6.1 Accessor element and attribute naming
8.6.2 EXPRESS attributes mapped to XML schema
8.6.2.1 Explicit attributes
8.6.2.2 INVERSE attributes
8.6.2.3 DERIVEd attributes
8.6.2.4 Redeclared attributes
8.6.2.5 Generic attributes
8.6.3 Accessor attributes
8.6.3.1 Keyref definitions for accessor attributes
8.6.4 Accessor elements
8.6.4.1 Attribute-tagged attribute whose data type is not an entity data type
8.6.4.2 Attribute-tagged attributes whose data type is an entity data type
8.6.5 Type-tagged attributes
8.6.6 No-tag attributes
8.7 XML Schema and namespaces for EXPRESS Schema
8.7.1 Namespace prefixes
8.7.2 URI for the target namespace of the derived XML schema
8.7.3 Namespace declarations for the derived XML schema
8.7.4 Import declarations for the derived XML schema
8.8 Context-schema specific unit of serialization
9 XML document creation
9.1 Preconditions
9.2 General XML document structure
9.2.1 Structure of an iso-10303-28 document
9.2.2 Structure of a uos document
9.2.3 Encoding of EXPRESS schemas
9.2.4 Encoding of configuration files
9.2.5 Encoding of population definitions
9.2.6 Encoding of data sets – the unit of serialization
9.3 Representation of EXPRESS entity instances
9.3.1 By-value representation of entity instances
9.3.2 External representation of EXPRESS entity instances
9.3.3 By-reference representation of EXPRESS entity instances
9.3.4 Complex entity representation of EXPRESS entity instances
9.4 Representation of an EXPRESS attribute
9.4.1 Determining by-reference or by-value representation
9.4.2 Representation of EXPRESS attribute value as accessor attribute
9.4.3 Attribute-tag representation of EXPRESS attribute value
9.4.4 Double-tag representation of EXPRESS attribute value
9.4.5 Type tag representation of EXPRESS attribute value
9.4.6 No-tag representation of entity instance as EXPRESS attribute value
9.4.7 No-tag-simple representation of entity instance as EXPRESS attribute value
9.5 Representation of simple values
9.5.1 Representation of BINARY values
9.5.2 Representation of BOOLEAN values
9.5.3 Representation of INTEGER values
9.5.4 Representation of LOGICAL values
9.5.5 Representation of NUMBER values
9.5.6 Representation of REAL values
9.5.7 Representation of STRING values
9.6 Representation of enumeration items
9.7 Representation of values of SELECT types
9.8 Representation of aggregate values
9.8.1 List-of-values representation of aggregate values
9.8.2 Sequence-of-elements representation of aggregate values
9.8.3 Indexed representation of aggregate values
9.8.4 List-of-references representation of aggregate values
9.8.5 Aggregates of aggregate values
9.8.6 Aggregates of values of defined data types
9.8.7 Instance elements for component values
9.9 Representation of values of defined data types
9.10 Representation of values in instance elements
9.10.1 By-value instance elements for non-entity data types
9.10.2 By-reference instance elements for non-entity data types
10 Configuration Language
10.1 The configuration element
10.1.1 By-reference representation of a configuration file
10.1.2 By-value representation of a configuration file
10.2 Configuration options
10.2.1 name
10.2.2 exp-type
10.2.3 content
10.2.4 aggregate-content
10.2.5 exp-attribute
10.2.6 entity-attribute
10.2.7 concrete-attribute
10.2.8 tagless
10.2.9 flatten
10.2.10 use-id
10.2.11 keep
10.2.12 keep-all
10.2.13 map
10.2.14 naming-convention
10.2.15 inheritance
10.2.16 notation
10.2.17 tag-source and tag-value
10.2.18 namespace
10.2.19 ref
10.2.20 use
10.2.21 implementation
10.2.22 facet
10.2.23 generate-keys
10.2.24 embed-schema-items
10.2.25 alias and prefix
10.2.26 select
10.3 Scoping elements
10.3.1 Option element
10.3.2 Type element
10.3.3 Entity element
10.3.4 Attribute element
10.3.5 Inverse element
10.3.6 Aggregate element
10.3.7 Schema element
10.3.8 UosElement element
10.3.9 UosEntity element
10.3.10 RootEntity element
10.4 Configuration attributes
10.5 Applicability of configuration directives
10.5.1 exp-attribute
10.5.2 content and use-id
10.5.3 exp-type
10.5.4 map
10.5.5 tagless
10.5.6 flatten
10.5.7 inheritance
10.5.8 notation
10.5.9 keep
10.5.10 ref
10.5.11 use
10.5.12 implementation
10.5.13 facet
Annex A (normative) Universal Resource Names for bindings of EXPRESS schemas
A.1 URN for Base XML Schema
A.2 URN for Configuration Language Schema
A.3 URN for Document Schema
A.4 URNs for EXPRESS schemas with registered object-identifiers
Annex B (normative) XML Schema for the configuration language
Annex C (normative) Base XML Schema
Annex D (normative) Document Schema
Annex E (normative) Valid populations of EXPRESS entity instances
E.1 Reference validity
E.1.1 Schema identity method
E.1.2 EXPRESS interface specification method
E.1.3 SDAI domain equivalence method
E.2 Determining population of a schema
E.2.1 Section boundary method
E.2.2 Include all compatible method
E.2.3 Include referenced instance method
Annex F (normative) Information object registration
F.1 Object identifier for Base XML Schema
F.2 Object identifier for Configuration Language Schema
F.3 Object identifier for Document Schema
Annex G (informative) Configuration language examples