An association indicating that one material is a component or part of another material. A material may be a part of many general facilities, sequentially and simultaneously.

composition_type (M: ref_composition_type(material_composition)) (C018, C063)

Defines the type of composition such as assembly, linear assembly or collection. Each material_composition must have a type of one ref_composition_type.


whole (M: material(contain_material)) (C123)

This is the material whose composition is being described. This represents the 'whole' of a 'parts-assembly' relationship. Each material_composition must characterize one material.


amount (O: ndt_any_quantity) (C123)

This describes the amount of the part material. This will normally only be used when the part represents bulk material. This might be described as an absolute amount or as relative amounts such a fraction or percentage.


description (O, I: ndt_comment) (C117)

A remark or comment about the instance. Inherited from e_and_p_data.


duration (O, I: ndt_time)

Defines the duration of the association expressed in any valid units of time. Inherited from transient_association.


end_time (O, I: ndt_date_tod)

End time of the association. Inherited from transient_association.


instance_create_date (O, I: ndt_date_tod) (C126)

This is the date that this instance was created. This date is defined by the source if imported, or is the date the instance is created if a new instance. Inherited from e_and_p_data.


instance_creator (O, I: ndt_identifier) (C126)

This is the person, company or application that created this instance. This identifies the party responsible for loading this instance. Inherited from e_and_p_data.


is_current (O, I: ndt_boolean) (C137)

When TRUE, this flag indicates that this instance is designated as a current instance. This flag can be used in place of time based attributes or can be used in conjunction with them; however, it should not conflict with them. Inherited from transient_association.


last_updated (O, I: ndt_date_tod) (C126)

This is the date that this instance was last updated. This value should be updated when any part of this instance is altered (except for inverse relationships). Inherited from e_and_p_data.


last_updated_by (O, I: ndt_identifier) (C126)

This records the person or application making the update to this instance. Inherited from e_and_p_data.


sequence (O: ndt_pint4) (C123)

This describes the sequence of the part material as a component of the whole material.


source (O, I: ndt_identifier) (C126)

The provider of this instance, which is usually a data provider for imported/purchased data. If this instance is provided by POSC, then this attribute must be "POSC". Inherited from e_and_p_data.


start_time (O, I: ndt_date_tod)

Start time of the association. Inherited from transient_association.


caused_by (O, I: activity(cause_association))

Specifies the activity which establishes this association. Each material_composition may be caused by one activity. Inherited from transient_association.


data_collection (I, V: SET[0:?] data_collection_content(collection_part)) (C020)

Indicates the data collections that include this instance of E and P data. Each material_composition may be a member of one or more data_collection_content. Inherited from e_and_p_data.


document_information_content (I, V: SET[0:?] document_information_content(e_and_p_data)) (C136)

These are the document specification parts that include this data value and define its meaning within a document specification. Each use may define a different meaning, and many uses are allowed. Each material_composition may be included in one or more document_information_content. Inherited from e_and_p_data.


graphical_element (I, V: SET[0:?] graphical_element(depicted_object))

Specifies one or more graphical elements which are depicting this data item. Each material_composition may be depicted by one or more graphical_element. Inherited from e_and_p_data.


ref_transient_period (O, I: ref_transient_period(transient_association)) (C138)

The type of period over which the property applies, such as day, month, quarter, cumulative, etc. Each material_composition may represent a period of one ref_transient_period. Inherited from transient_association.


terminated_by (O, I: activity(terminate_association))

Specifies the activity which established the termination of a transient association between two objects. Each material_composition may be terminated by one activity. Inherited from transient_association.


uncertainty_class (O: uncertainty_class(material_composition)) (C018)

Indicates the degree of confidence or certainty associated with this composition. Each material_composition may be classified by one uncertainty_class.

Local rules:

Abstract supertype:
Each MATERIAL_COMPOSITION must be instantiated as one of its subtypes. These subtypes are: material_specific_composition, material_type_composition
[I: transient_association] Instance Value Constraint (C050)
If REF_TRANSIENT_PERIOD is either YEAR TO DATE, MONTH TO DATE or CUMULATIVE, then END_TIME must be instantiated.
[I: transient_association] Instance Value Constraint (C050)
If REF_TRANSIENT_PERIOD is ANNUAL, SEMIANNUAL, QUARTER, MONTHLY, DAILY, or HOURLY, then either both START_TIME and END_TIME are blank or both must be instantiated.
[I: transient_association] Instance Value Constraint (C050)
If REF_TRANSIENT_PERIOD is EVENT, then both START_TIME and END_TIME must either be blank or be identical.
Instance Value Constraint (C123, C137)
For each instance, sequence can only be specified if the composition is a linear assembly.

Supertype path(s):

e_and_p_data > association > transient_association > material_composition.

Entity projects as table MATERIAL_COMPOSITION.

Referenced in Diagrams:

• MS1: Material Effects