Table of Contents
Target Namespace
http://www.astrogrid.org/schema/CommonExecutionArchitectureBase/v1
Element and Attribute Namespaces
Global element and attribute declarations belong to this schema's target namespace.
By default, local element declarations belong to this schema's target namespace.
By default, local attribute declarations have no namespace.
Schema Composition
This schema imports schema(s) from the following namespace(s):
Documentation
this file captures some of the ideas used in the WSDL-like parameter definition files, but as yet is not used for validation
the baseparameter definition is mimiced by the contents of a part element in the wsdl
important types are defined here that would have special significance....
Declared Namespaces
Prefix
Namespace
xml
http://www.w3.org/XML/1998/namespace
xs
http://www.w3.org/2001/XMLSchema
agab
http://www.astrogrid.org/schema/CommonExecutionArchitectureBase/v1
agpd
http://www.astrogrid.org/schema/AGParameterDefinition/v1
Schema Component Representation
<
xs:schema targetNamespace ="
http://www.astrogrid.org/schema/CommonExecutionArchitectureBase/v1 "
elementFormDefault ="
qualified "
attributeFormDefault ="
unqualified ">
<xs:import namespace ="http://www.astrogrid.org/schema/AGParameterDefinition/v1 " schemaLocation ="AGParameterDefinition.xsd "/>
...
</
xs:schema >
XML Instance Representation
<
agab :Application
name="
xs :ID [1] "
instanceClass="
xs :string [0..1] " >
<
agab :Parameters>
[1]
</
agab :Parameters>
<
agab :ExecutionPath>
xs :string </
agab :ExecutionPath>
[1]
</
agab :Application>
Schema Component Representation
<
xs:element name ="
Application "
type ="
agab :CommandLineApplication
">
<
xs:unique name ="
parameternameunique ">
<xs:selector xpath ="./agab:Parameters/agab:CmdLineParameterDefn "/>
<xs:field xpath ="@name "/>
</
xs:unique >
<
xs:unique name ="
interfacenameunique ">
<xs:selector xpath ="./agab:Interfaces/agab:Interface "/>
<xs:field xpath ="@name "/>
</
xs:unique >
<
xs:keyref name ="
parametername "
refer ="
agab :parameternameunique
">
<xs:selector xpath =".//agab:pref "/>
<xs:field xpath ="@ref "/>
</
xs:keyref >
</
xs:element >
XML Instance Representation
<
agab :ApplicationList>
</
agab :ApplicationList>
Schema Component Representation
<
xs:element name ="
ApplicationList ">
<
xs:complexType >
<
xs:sequence >
</
xs:sequence >
</
xs:complexType >
</
xs:element >
This element can be used wherever the following element is referenced:
Name
CmdLineParameterDefn
Type
Locally-defined complex type
Nillable
no
Abstract
no
Documentation
The specialization for a command line parameter
XML Instance Representation
<
agab :CmdLineParameterDefn
name="
xs :string [1] "
type="
agpd :parameterTypes
[1] "
accept-encodings="
xs :string [0..1] "
sub-type="
xs :string [0..1] "
commandSwitch="
xs :string [0..1] "
commandPosition="
xs :int [0..1] "
stdio="
xs :boolean [0..1] "
switchType="
agab :switchTypes
[0..1] "
fileRef="
xs :boolean [0..1] " >
Start All [1]
<
agpd :DefaultValue>
xs :string </
agpd :DefaultValue>
[0..1] ?
<
agpd :OptionList>
[0..1] ?
<
agpd :OptionVal>
xs :string </
agpd :OptionVal>
[1..*]
</
agpd :OptionList>
End All
</
agab :CmdLineParameterDefn>
Schema Component Representation
<
xs:element name ="
CmdLineParameterDefn "
substitutionGroup ="
agab:Parameter ">
<
xs:complexType >
<
xs:complexContent >
</
xs:complexContent >
</
xs:complexType >
</
xs:element >
Name
CommandLineExecutionControllerConfig
Type
Locally-defined complex type
Nillable
no
Abstract
no
Documentation
The configuration for a command line execution controller
XML Instance Representation
<
agab :CommandLineExecutionControllerConfig>
</
agab :CommandLineExecutionControllerConfig>
Schema Component Representation
<
xs:element name ="
CommandLineExecutionControllerConfig ">
<
xs:complexType >
<
xs:complexContent >
</
xs:complexContent >
</
xs:complexType >
</
xs:element >
XML Instance Representation
<
agab :DataCentre
name="
xs :ID [1] "
instanceClass="
xs :string [0..1] " >
<
agab :Parameters>
[1]
</
agab :Parameters>
</
agab :DataCentre>
Schema Component Representation
<
xs:element name ="
DataCentre "
type ="
agab :DataCentreApplication
">
<
xs:unique name ="
DCparameternameunique ">
<xs:selector xpath ="./agab:Parameters/agab:DataCentreParameterDefn "/>
<xs:field xpath ="@name "/>
</
xs:unique >
<
xs:unique name ="
DCinterfacenameunique ">
<xs:selector xpath ="./agab:Interfaces/agab:Interface "/>
<xs:field xpath ="@name "/>
</
xs:unique >
<
xs:keyref name ="
DCparametername "
refer ="
agab :DCparameternameunique
">
<xs:selector xpath =".//agab:pref "/>
<xs:field xpath ="@ref "/>
</
xs:keyref >
</
xs:element >
Name
DataCentreControllerConfig
Type
Locally-defined complex type
Nillable
no
Abstract
no
Documentation
Configuration for a set of datacentre descriptions
XML Instance Representation
<
agab :DataCentreControllerConfig>
</
agab :DataCentreControllerConfig>
Schema Component Representation
<
xs:element name ="
DataCentreControllerConfig ">
<
xs:complexType >
<
xs:complexContent >
</
xs:complexContent >
</
xs:complexType >
</
xs:element >
This element can be used wherever the following element is referenced:
XML Instance Representation
<
agab :DataCentreParameterDefn
name="
xs :string [1] "
type="
agpd :parameterTypes
[1] "
accept-encodings="
xs :string [0..1] "
sub-type="
xs :string [0..1] " >
Start All [1]
<
agpd :DefaultValue>
xs :string </
agpd :DefaultValue>
[0..1] ?
<
agpd :OptionList>
[0..1] ?
<
agpd :OptionVal>
xs :string </
agpd :OptionVal>
[1..*]
</
agpd :OptionList>
End All
</
agab :DataCentreParameterDefn>
The following elements can be used wherever this element is referenced:
XML Instance Representation
<
agab :Parameter
name="
xs :string [1] "
type="
agpd :parameterTypes
[1] "
accept-encodings="
xs :string [0..1] "
sub-type="
xs :string [0..1] " >
Start All [1]
<
agpd :DefaultValue>
xs :string </
agpd :DefaultValue>
[0..1] ?
<
agpd :OptionList>
[0..1] ?
<
agpd :OptionVal>
xs :string </
agpd :OptionVal>
[1..*]
</
agpd :OptionList>
End All
</
agab :Parameter>
XML Instance Representation
<
agab :WebService
name="
xs :ID [1] "
instanceClass="
xs :string [0..1] " >
<
agab :Parameters>
[1]
</
agab :Parameters>
</
agab :WebService>
Schema Component Representation
<
xs:element name ="
WebService "
type ="
agab :WebServiceApplication
">
<
xs:unique name ="
WSparameternameunique ">
<xs:selector xpath ="./agab:Parameters/agab:WebServiceParameterDefn "/>
<xs:field xpath ="@name "/>
</
xs:unique >
<
xs:unique name ="
WSinterfacenameunique ">
<xs:selector xpath ="./agab:Interfaces/agab:Interface "/>
<xs:field xpath ="@name "/>
</
xs:unique >
<
xs:keyref name ="
WSparametername "
refer ="
agab :WSparameternameunique
">
<xs:selector xpath =".//agab:pref "/>
<xs:field xpath ="@ref "/>
</
xs:keyref >
</
xs:element >
Name
WebServiceExecutionControllerConfig
Type
Locally-defined complex type
Nillable
no
Abstract
no
XML Instance Representation
<
agab :WebServiceExecutionControllerConfig>
</
agab :WebServiceExecutionControllerConfig>
Schema Component Representation
<
xs:element name ="
WebServiceExecutionControllerConfig ">
<
xs:complexType >
<
xs:complexContent >
</
xs:complexContent >
</
xs:complexType >
</
xs:element >
This element can be used wherever the following element is referenced:
XML Instance Representation
<
agab :WebServiceParameterDefn
name="
xs :string [1] "
type="
agpd :parameterTypes
[1] "
accept-encodings="
xs :string [0..1] "
sub-type="
xs :string [0..1] " >
Start All [1]
<
agpd :DefaultValue>
xs :string </
agpd :DefaultValue>
[0..1] ?
<
agpd :OptionList>
[0..1] ?
<
agpd :OptionVal>
xs :string </
agpd :OptionVal>
[1..*]
</
agpd :OptionList>
End All
</
agab :WebServiceParameterDefn>
Super-types:
None
Sub-types:
Name
ApplicationBase
Abstract
no
Documentation
Base Application Description
XML Instance Representation
<...
name="
xs :ID [1] "
instanceClass="
xs :string [0..1] " >
<
agab :Parameters>
[1]
</
agab :Parameters>
</...>
Schema Component Representation
<
xs:complexType name ="
ApplicationBase "
abstract ="
false ">
<
xs:sequence >
<
xs:element name ="
Parameters ">
<
xs:complexType >
<
xs:sequence >
<
xs:element ref ="
agab :Parameter
"
minOccurs ="
0 "
maxOccurs ="
unbounded "/>
</
xs:sequence >
</
xs:complexType >
</
xs:element >
</
xs:sequence >
<
xs:attribute name ="
name "
type ="
xs :ID
"
use ="
required "/>
<
xs:attribute name ="
instanceClass "
type ="
xs :string
"
use ="
optional "/>
</
xs:complexType >
Super-types:
ApplicationBase
< CommandLineApplication (by extension)
Sub-types:
None
Name
CommandLineApplication
Abstract
no
Documentation
Description of a command line application
XML Instance Representation
<...
name="
xs :ID [1] "
instanceClass="
xs :string [0..1] " >
<
agab :Parameters>
[1]
</
agab :Parameters>
<
agab :ExecutionPath>
xs :string </
agab :ExecutionPath>
[1]
</...>
Schema Component Representation
<
xs:complexType name ="
CommandLineApplication ">
<
xs:complexContent >
<
xs:extension base ="
agab :ApplicationBase
">
<
xs:sequence >
<
xs:element name ="
ExecutionPath "
type ="
xs :string
"/>
</
xs:sequence >
</
xs:extension >
</
xs:complexContent >
</
xs:complexType >
Name
CommandLineParameterDefinition
Abstract
no
Documentation
Defines what it is to be a command line parameter - needs more thought with experience
XML Instance Representation
<...
name="
xs :string [1] "
type="
agpd :parameterTypes
[1] "
accept-encodings="
xs :string [0..1] "
sub-type="
xs :string [0..1] "
commandSwitch="
xs :string [0..1] "
commandPosition="
xs :int [0..1] "
stdio="
xs :boolean [0..1] "
switchType="
agab :switchTypes
[0..1] "
fileRef="
xs :boolean [0..1] " >
Start All [1]
<
agpd :DefaultValue>
xs :string </
agpd :DefaultValue>
[0..1] ?
<
agpd :OptionList>
[0..1] ?
<
agpd :OptionVal>
xs :string </
agpd :OptionVal>
[1..*]
</
agpd :OptionList>
End All
</...>
Schema Component Representation
<
xs:complexType name ="
CommandLineParameterDefinition ">
<
xs:complexContent >
<
xs:extension base ="
agpd :BaseParameterDefinition
">
<
xs:attribute name ="
commandSwitch "
type ="
xs :string
"
use ="
optional "/>
<
xs:attribute name ="
commandPosition "
type ="
xs :int
"
use ="
optional "
default ="
-1 "/>
<
xs:attribute name ="
stdio "
type ="
xs :boolean
"
use ="
optional "
default ="
false "/>
<
xs:attribute name ="
switchType "
type ="
agab :switchTypes
"
use ="
optional "
default ="
normal "/>
<
xs:attribute name ="
fileRef "
type ="
xs :boolean
"
use ="
optional "
default ="
true "/>
</
xs:extension >
</
xs:complexContent >
</
xs:complexType >
Super-types:
None
Sub-types:
None
Name
CommonExecutionConnectorConfigType
Abstract
no
Documentation
The base for a common execution connector configuration
Name
DataCenterParameterDefinition
Abstract
no
Documentation
special properties for datacentre parameters
XML Instance Representation
<...
name="
xs :string [1] "
type="
agpd :parameterTypes
[1] "
accept-encodings="
xs :string [0..1] "
sub-type="
xs :string [0..1] " >
Start All [1]
<
agpd :DefaultValue>
xs :string </
agpd :DefaultValue>
[0..1] ?
<
agpd :OptionList>
[0..1] ?
<
agpd :OptionVal>
xs :string </
agpd :OptionVal>
[1..*]
</
agpd :OptionList>
End All
</...>
Schema Component Representation
<
xs:complexType name ="
DataCenterParameterDefinition ">
<
xs:complexContent >
</
xs:complexContent >
</
xs:complexType >
Super-types:
ApplicationBase
< DataCentreApplication (by extension)
Sub-types:
None
Name
DataCentreApplication
Abstract
no
Documentation
Description of a data centre application
XML Instance Representation
<...
name="
xs :ID [1] "
instanceClass="
xs :string [0..1] " >
<
agab :Parameters>
[1]
</
agab :Parameters>
</...>
Schema Component Representation
<
xs:complexType name ="
DataCentreApplication ">
<
xs:complexContent >
</
xs:complexContent >
</
xs:complexType >
Super-types:
xs :string < HttpURLType (by extension)
Sub-types:
None
Name
HttpURLType
Abstract
no
Documentation
The URL for an http get or post service
Schema Component Representation
<
xs:complexType name ="
HttpURLType ">
<
xs:simpleContent >
<
xs:extension base ="
xs :string
">
</
xs:extension >
</
xs:simpleContent >
</
xs:complexType >
Super-types:
None
Sub-types:
None
Name
Interface
Abstract
no
Documentation
description of an interface
XML Instance Representation
<...
name="
xs :string [1] " >
</...>
Schema Component Representation
<
xs:complexType name ="
Interface ">
<
xs:sequence >
<
xs:element name ="
input ">
<
xs:complexType >
<
xs:sequence >
<
xs:element name ="
pref "
type ="
agab :parameterRef
"
minOccurs ="
0 "
maxOccurs ="
unbounded "/>
</
xs:sequence >
</
xs:complexType >
</
xs:element >
<
xs:element name ="
output ">
<
xs:complexType >
<
xs:sequence >
<
xs:element name ="
pref "
type ="
agab :parameterRef
"
minOccurs ="
0 "
maxOccurs ="
unbounded "/>
</
xs:sequence >
</
xs:complexType >
</
xs:element >
</
xs:sequence >
<
xs:attribute name ="
name "
type ="
xs :string
"
use ="
required "/>
</
xs:complexType >
Super-types:
None
Sub-types:
None
Schema Component Representation
<
xs:complexType name ="
InterfacesType ">
<
xs:sequence >
<
xs:element name ="
Interface "
type ="
agab :Interface
"
maxOccurs ="
unbounded "/>
</
xs:sequence >
</
xs:complexType >
Super-types:
None
Sub-types:
None
Name
parameterRef
Abstract
no
Documentation
reference to an existing parameter. Used in the interface
XML Instance Representation
<...
ref="
xs :string [0..1] "
minoccurs="
xs :int [0..1] "
maxoccurs="
xs :int [0..1] ? " />
Schema Component Representation
<
xs:complexType name ="
parameterRef "
mixed ="
false ">
<
xs:attribute name ="
ref "
type ="
xs :string
"/>
<
xs:attribute name ="
minoccurs "
type ="
xs :int
"
use ="
optional "
default ="
1 "/>
<
xs:attribute name ="
maxoccurs "
type ="
xs :int
"
use ="
optional "
default ="
1 "/>
</
xs:complexType >
Complex Type: script
Super-types:
None
Sub-types:
None
Name
script
Abstract
no
Documentation
a snippet of code to massage the inputs and outputs
Schema Component Representation
<
xs:complexType name ="
script ">
<
xs:sequence >
<
xs:element name ="
code "
type ="
xs :string
"/>
</
xs:sequence >
</
xs:complexType >
Super-types:
None
Sub-types:
None
Name
WebHttpApplicationSetup
Abstract
no
Documentation
Description of an HTTP Application
Schema Component Representation
<
xs:complexType name ="
WebHttpApplicationSetup ">
<
xs:sequence >
<
xs:element name ="
PreProcessScript "
type ="
agab :script
"
minOccurs ="
0 "/>
<
xs:element name ="
PostProcessScript "
type ="
agab :script
"
minOccurs ="
0 "/>
</
xs:sequence >
</
xs:complexType >
Super-types:
None
Sub-types:
None
Name
WebHttpCall
Abstract
no
Documentation
Description of an HTTP get or post service
XML Instance Representation
<...>
<
agab :SimpleParameter
name="
xs :string [1] "
value="
xs :string [1] " />
[0..*]
</...>
Schema Component Representation
<
xs:complexType name ="
WebHttpCall ">
<
xs:sequence >
<
xs:element name ="
SimpleParameter "
minOccurs ="
0 "
maxOccurs ="
unbounded ">
<
xs:complexType >
<
xs:attribute name ="
name "
type ="
xs :string
"
use ="
required "/>
<
xs:attribute name ="
value "
type ="
xs :string
"
use ="
required "/>
</
xs:complexType >
</
xs:element >
</
xs:sequence >
</
xs:complexType >
Super-types:
ApplicationBase
< WebServiceApplication (by extension)
Sub-types:
None
Name
WebServiceApplication
Abstract
no
Documentation
Description of a web service application
XML Instance Representation
<...
name="
xs :ID [1] "
instanceClass="
xs :string [0..1] " >
<
agab :Parameters>
[1]
</
agab :Parameters>
</...>
Schema Component Representation
<
xs:complexType name ="
WebServiceApplication ">
<
xs:complexContent >
</
xs:complexContent >
</
xs:complexType >
Name
WebServiceParameterDefinition
Abstract
no
Documentation
Special properties for web serivce parameters
XML Instance Representation
<...
name="
xs :string [1] "
type="
agpd :parameterTypes
[1] "
accept-encodings="
xs :string [0..1] "
sub-type="
xs :string [0..1] " >
Start All [1]
<
agpd :DefaultValue>
xs :string </
agpd :DefaultValue>
[0..1] ?
<
agpd :OptionList>
[0..1] ?
<
agpd :OptionVal>
xs :string </
agpd :OptionVal>
[1..*]
</
agpd :OptionList>
End All
</...>
Schema Component Representation
<
xs:complexType name ="
WebServiceParameterDefinition ">
<
xs:complexContent >
</
xs:complexContent >
</
xs:complexType >
Super-types:
xs :string < ApplicationKindType (by restriction)
Sub-types:
None
Name
ApplicationKindType
Content
value comes from list: {'cmdline'|'http'|'javaclass'}
Documentation
The type of the underlying application - commandline, http-get etc
Schema Component Representation
<
xs:simpleType name ="
ApplicationKindType ">
<
xs:restriction base ="
xs :string
">
<xs:enumeration value ="cmdline "/>
<xs:enumeration value ="http "/>
<xs:enumeration value ="javaclass "/>
</
xs:restriction >
</
xs:simpleType >
Super-types:
xs :string < HttpMethodType (by restriction)
Sub-types:
None
Name
HttpMethodType
Content
value comes from list: {'get'|'post'}
Documentation
http method type: get or post
Schema Component Representation
<
xs:simpleType name ="
HttpMethodType ">
<
xs:restriction base ="
xs :string
">
<xs:enumeration value ="get "/>
<xs:enumeration value ="post "/>
</
xs:restriction >
</
xs:simpleType >
Super-types:
xs :string < scriptingLanguage (by restriction)
Sub-types:
None
Name
scriptingLanguage
Content
value comes from list: {'xslt'|'javascript'|'groovy'}
Documentation
Scripting language
Schema Component Representation
<
xs:simpleType name ="
scriptingLanguage ">
<
xs:restriction base ="
xs :string
">
<xs:enumeration value ="xslt "/>
<xs:enumeration value ="javascript "/>
<xs:enumeration value ="groovy "/>
</
xs:restriction >
</
xs:simpleType >
Super-types:
xs :string < switchTypes (by restriction)
Sub-types:
None
Name
switchTypes
Content
value comes from list: {'normal'|'keyword'}
Documentation
normal is the -x value style and keyword is the x=value style
Schema Component Representation
<
xs:simpleType name ="
switchTypes ">
<
xs:restriction base ="
xs :string
">
<xs:enumeration value ="normal "/>
<xs:enumeration value ="keyword "/>
</
xs:restriction >
</
xs:simpleType >
Complex Type:
Schema Component Type
AusAddress
Schema Component Name
Super-types:
Address < AusAddress (by extension)
Sub-types:
QLDAddress (by restriction)
If this schema component is a type definition, its type hierarchy is shown in a gray-bordered box.
The table above displays the properties of this schema component.
XML Instance Representation
<...
country="Australia "
>
<unitNo> string </unitNo> [0..1]
<houseNo> string </houseNo> [1]
<street> string </street> [1]
Start Choice
[1]
<city> string </city> [1]
<town> string </town> [1]
End Choice
<state> AusStates </state> [1]
<postcode> string <<pattern = [1-9][0-9]{3}>> </postcode> [1]
?
</...>
The XML Instance Representation table above shows the schema component's content as an XML instance.
The minimum and maximum occurrence of elements and attributes are provided in square brackets, e.g. [0..1].
Model group information are shown in gray, e.g. Start Choice ... End Choice.
For type derivations, the elements and attributes that have been added to or changed from the base type's content are shown in bold .
If an element/attribute has a fixed value, the fixed value is shown in green, e.g. country="Australia".
Otherwise, the type of the element/attribute is displayed.
If the element/attribute's type is in the schema, a link is provided to it.
For local simple type definitions, the constraints are displayed in angle brackets, e.g. <<pattern = [1-9][0-9]{3}>>.
If a local element/attribute has documentation, it will be displayed in a window that pops up when the question mark inside the attribute or next to the element is clicked, e.g. <postcode>.
Schema Component Representation
<complexType
name ="AusAddress ">
<complexContent >
<extension
base ="
Address
">
<sequence >
<element
name ="state " type ="
AusStates
"/>
<element
name ="postcode ">
<simpleType >
<restriction
base ="
string
">
<pattern
value ="[1-9][0-9]{3} "/>
</restriction >
</simpleType >
</element >
</sequence >
<attribute
name ="country " type ="
string
" fixed ="Australia "/>
</extension >
</complexContent >
</complexType >
The Schema Component Representation table above displays the underlying XML representation of the schema component. (Annotations are not shown.)
Abstract (Applies to complex type definitions and element declarations). An abstract element or complex type cannot used to validate an element instance. If there is a reference to an abstract element, only element declarations that can substitute the abstract element can be used to validate the instance. For references to abstract type definitions, only derived types can be used.
All Model Group Child elements can be provided in any order in instances. See: http://www.w3.org/TR/xmlschema-1/#element-all .
Choice Model Group
Only one from the list of child elements and model groups can be provided in instances. See: http://www.w3.org/TR/xmlschema-1/#element-choice .
Collapse Whitespace Policy Replace tab, line feed, and carriage return characters with space character (Unicode character 32). Then, collapse contiguous sequences of space characters into single space character, and remove leading and trailing space characters.
Disallowed Substitutions (Applies to element declarations). If substitution is specified, then substitution group members cannot be used in place of the given element declaration to validate element instances. If derivation methods , e.g. extension, restriction, are specified, then the given element declaration will not validate element instances that have types derived from the element declaration's type using the specified derivation methods. Normally, element instances can override their declaration's type by specifying an xsi:type attribute.
Key Constraint Like Uniqueness Constraint , but additionally requires that the specified value(s) must be provided. See: http://www.w3.org/TR/xmlschema-1/#cIdentity-constraint_Definitions .
Key Reference Constraint Ensures that the specified value(s) must match value(s) from a Key Constraint or Uniqueness Constraint . See: http://www.w3.org/TR/xmlschema-1/#cIdentity-constraint_Definitions .
Model Group Groups together element content, specifying the order in which the element content can occur and the number of times the group of element content may be repeated. See: http://www.w3.org/TR/xmlschema-1/#Model_Groups .
Nillable (Applies to element declarations). If an element declaration is nillable, instances can use the xsi:nil attribute. The xsi:nil attribute is the boolean attribute, nil , from the http://www.w3.org/2001/XMLSchema-instance namespace. If an element instance has an xsi:nil attribute set to true, it can be left empty, even though its element declaration may have required content.
Notation A notation is used to identify the format of a piece of data. Values of elements and attributes that are of type, NOTATION, must come from the names of declared notations. See: http://www.w3.org/TR/xmlschema-1/#cNotation_Declarations .
Preserve Whitespace Policy Preserve whitespaces exactly as they appear in instances.
Prohibited Derivations (Applies to type definitions). Derivation methods that cannot be used to create sub-types from a given type definition.
Prohibited Substitutions (Applies to complex type definitions). Prevents sub-types that have been derived using the specified derivation methods from validating element instances in place of the given type definition.
Replace Whitespace Policy Replace tab, line feed, and carriage return characters with space character (Unicode character 32).
Sequence Model Group Child elements and model groups must be provided in the specified order in instances. See: http://www.w3.org/TR/xmlschema-1/#element-sequence .
Substitution Group Elements that are members of a substitution group can be used wherever the head element of the substitution group is referenced.
Substitution Group Exclusions (Applies to element declarations). Prohibits element declarations from nominating themselves as being able to substitute a given element declaration, if they have types that are derived from the original element's type using the specified derivation methods.
Target Namespace The target namespace identifies the namespace that components in this schema belongs to. If no target namespace is provided, then the schema components do not belong to any namespace.
Uniqueness Constraint Ensures uniqueness of an element/attribute value, or a combination of values, within a specified scope. See: http://www.w3.org/TR/xmlschema-1/#cIdentity-constraint_Definitions .