Documentation for WITSML_Composite

Table of Contents

Master schema documentation file: WITSML_Composite.xsd.html

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Schema Document Properties

Target Namespace http://www.witsml.org/schemas/131/addendum/combo
Version 1.3.1
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.

Declared Namespaces

Prefix Namespace
witsml http://www.witsml.org/schemas/131/addendum/combo
xml http://www.w3.org/XML/1998/namespace
xsd http://www.w3.org/2001/XMLSchema
Schema Component Representation
<xsd:schema elementFormDefault="qualified" attributeFormDefault="unqualified" targetNamespace="http://www.witsml.org/schemas/131/addendum/combo" version="1.3.1">
...
</xsd:schema>
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Global Definitions

Complex Type: abstractMeasure

Super-types: xsd:double < abstractDouble (by restriction) < abstractMeasure (by extension)
Sub-types: None
Name abstractMeasure
Abstract yes
Documentation The intended abstract supertype of all quantities that have a value with a unit of measure. The unit of measure is in the uom attribute of the subtypes. This type allows all quantities to be profiled to be a 'float' instead of a 'double'.
XML Instance Representation
<...>
witsml:abstractDouble
</...>
Diagram
h544766520
Schema Component Representation
<xsd:complexType name="abstractMeasure" abstract="true">
<xsd:simpleContent>
<xsd:extension base=" witsml:abstractDouble "/>
</xsd:simpleContent>
</xsd:complexType>
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Simple Type: abstractBoolean

Super-types: xsd:boolean < abstractBoolean (by restriction)
Sub-types: None
Name abstractBoolean
Content
  • Base XSD Type: boolean
  • pattern = .+
Documentation This type disallows an "empty" boolean value. This type should not be used directly except to derive another type. All boolean types should be derived from this type rather than using xsd:boolen.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractBoolean">
<xsd:restriction base=" xsd:boolean ">
<xsd:pattern value=".+"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractCommentString

Super-types: xsd:string < abstractString (by restriction) < abstractMaximumLengthString (by restriction) < abstractCommentString (by restriction)
Sub-types: None
Name abstractCommentString
Content
  • Base XSD Type: string
  • length >= 1
  • Whitespace policy: collapse
  • length <= 4000
Documentation The intended abstract supertype of all comments or remarks intended for human consumption. There should be no assumption that semantics can be extracted from the field by a computer. Neither should there be an assumption that any two humans will interpret the information in the same way (i.e., it may not be interoperable).
Diagram
h-461701680
Schema Component Representation
<xsd:simpleType name="abstractCommentString">
<xsd:restriction base=" witsml:abstractMaximumLengthString "/>
</xsd:simpleType>
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Simple Type: abstractDate

Super-types: xsd:date < abstractDate (by restriction)
Sub-types: None
Name abstractDate
Content
  • Base XSD Type: date
  • pattern = .+
Documentation This type disallows an "empty" date value. This type should not be used directly except to derive another type. All dateTime types should be derived from this type rather than using xsd:dateTime.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractDate">
<xsd:restriction base=" xsd:date ">
<xsd:pattern value=".+"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractDateTime

Super-types: xsd:dateTime < abstractDateTime (by restriction)
Sub-types: None
Name abstractDateTime
Content
  • Base XSD Type: dateTime
  • pattern = .+
Documentation This type disallows an "empty" dateTime value. This type should not be used directly except to derive another type. All dateTime types should be derived from this type rather than using xsd:dateTime.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractDateTime">
<xsd:restriction base=" xsd:dateTime ">
<xsd:pattern value=".+"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractDouble

Super-types: xsd:double < abstractDouble (by restriction)
Sub-types:
Name abstractDouble
Content
  • Base XSD Type: double
  • pattern = .+
Documentation This type disallows an "empty" double value. This type should not be used directly except to derive another type.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractDouble">
<xsd:restriction base=" xsd:double ">
<xsd:pattern value=".+"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractInt

Super-types: xsd:int < abstractInt (by restriction)
Sub-types: None
Name abstractInt
Content
  • Base XSD Type: int
  • pattern = .+
Documentation This type disallows an "empty" int value. This type should not be used directly except to derive another type.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractInt">
<xsd:restriction base=" xsd:int ">
<xsd:pattern value=".+"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractMaximumLengthString

Super-types: xsd:string < abstractString (by restriction) < abstractMaximumLengthString (by restriction)
Sub-types:
Name abstractMaximumLengthString
Content
  • Base XSD Type: string
  • length >= 1
  • Whitespace policy: collapse
  • length <= 4000
Documentation This defines the maximum acceptable length of a string that can be stored in a data base.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractMaximumLengthString">
<xsd:restriction base=" witsml:abstractString ">
<xsd:maxLength value="4000"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractNameString

Super-types: xsd:string < abstractString (by restriction) < abstractNameString (by restriction)
Sub-types: None
Name abstractNameString
Content
  • Base XSD Type: string
  • length >= 1
  • Whitespace policy: collapse
  • length <= 64
Documentation The intended abstract supertype of all user assigned human recognizable contextual name types. There should be no assumption that (interoperable) semantic information will be extracted from the name by a third party. This type of value is generally not guaranteed to be unique and is not a candidate to be replaced by an enumeration.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractNameString">
<xsd:restriction base=" witsml:abstractString ">
<xsd:maxLength value="64"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractPositiveCount

Super-types: xsd:short < abstractShort (by restriction) < abstractPositiveCount (by restriction)
Sub-types: None
Name abstractPositiveCount
Content
  • Base XSD Type: short
  • pattern = .+
  • value >= 1
Documentation A positive integer (one based count or index) with a maximum value of 32767 (2-bytes).
Diagram
Schema Component Representation
<xsd:simpleType name="abstractPositiveCount">
<xsd:restriction base=" witsml:abstractShort ">
<xsd:minInclusive value="1"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractShort

Super-types: xsd:short < abstractShort (by restriction)
Sub-types:
Name abstractShort
Content
  • Base XSD Type: short
  • pattern = .+
Documentation This type disallows an "empty" short value. This type should not be used directly except to derive another type.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractShort">
<xsd:restriction base=" xsd:short ">
<xsd:pattern value=".+"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractString

Super-types: xsd:string < abstractString (by restriction)
Sub-types:
Name abstractString
Content
  • Base XSD Type: string
  • length >= 1
  • Whitespace policy: collapse
Documentation The intended abstract supertype of all strings. This abstract type allows the control over whitespace for all strings to be defined at a high level. This type should not be used directly except to derive another type.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractString">
<xsd:restriction base=" xsd:string ">
<xsd:whiteSpace value="collapse"/>
<xsd:minLength value="1"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractTypeEnum

Super-types: xsd:string < abstractString (by restriction) < abstractTypeEnum (by restriction)
Sub-types: None
Name abstractTypeEnum
Content
  • Base XSD Type: string
  • length >= 1
  • Whitespace policy: collapse
  • length <= 40
Documentation The intended abstract supertype of all enumerated "types". This abstract type allows the maximum length of a type enumeration to be centrally defined. This type should not be used directly except to derive another type. It should also be used for uncontrolled strings which are candidates to become enumerations at a future date.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractTypeEnum">
<xsd:restriction base=" witsml:abstractString ">
<xsd:maxLength value="40"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractUidString

Super-types: xsd:string < abstractString (by restriction) < abstractUidString (by restriction)
Sub-types: None
Name abstractUidString
Content
  • Base XSD Type: string
  • length >= 1
  • Whitespace policy: collapse
  • pattern = [^ ]*
  • length <= 64
Documentation The intended abstract supertype of all locally unique identifiers. The value is not intended to convey any semantic content (e.g., it may be computer generated). The value is only required to be unique within a context in a document (e.g., defined via key and keyref). There is no guarantee that the same data in multiple documents will utilize the same uid value unless enforced by the source of the document (e.g., a document server). Spaces are not allowed.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractUidString">
<xsd:restriction base=" witsml:abstractString ">
<xsd:maxLength value="64"/>
<xsd:pattern value="[^ ]*"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractUncollapsedString

Super-types: xsd:string < abstractUncollapsedString (by restriction)
Sub-types: None
Name abstractUncollapsedString
Content
  • Base XSD Type: string
  • length >= 1
Documentation The intended abstract supertype of all strings that must maintain whitespace. The type abstractString should normally be used. This type should not be used directly except to derive another type.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractUncollapsedString">
<xsd:restriction base=" xsd:string ">
<xsd:minLength value="1"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractUomEnum

Super-types: xsd:string < abstractString (by restriction) < abstractUomEnum (by restriction)
Sub-types: None
Name abstractUomEnum
Content
  • Base XSD Type: string
  • length >= 1
  • Whitespace policy: collapse
  • length <= 24
Documentation The intended abstract supertype of all "units of measure". This abstract type allows the maximum length of a UOM enumeration to be centrally defined. This type is abstract in the sense that it should not be used directly except to derive another type.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractUomEnum">
<xsd:restriction base=" witsml:abstractString ">
<xsd:maxLength value="24"/>
</xsd:restriction>
</xsd:simpleType>
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Simple Type: abstractYear

Super-types: xsd:gYear < abstractYear (by restriction)
Sub-types: None
Name abstractYear
Content
  • Base XSD Type: gYear
  • pattern = .+
Documentation This type disallows an "empty" gYear value. This type should not be used directly except to derive another type. All year types should be derived from this type rather than using xsd:gYear.
Diagram
Schema Component Representation
<xsd:simpleType name="abstractYear">
<xsd:restriction base=" xsd:gYear ">
<xsd:pattern value=".+"/>
</xsd:restriction>
</xsd:simpleType>
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Legend

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.
Name AusAddress
Abstract no
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.

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.)
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Glossary

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.

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