A part is an element of a product relevant for a bill-of material.



A real part is normally unambiguously identified by its Part_number and Company_name. In the KBL, the actual classification of a Part (e.g. Accessory, Connector_housing) defines how the Part can be used in the Harness (in the KBL). However, in reality there are parts that have multiple uses (e.g. a tape can be used as Wire_protection or as Accessory). Therefore it is allowed to have multiple instances of the KBL Classification Part with the same Part_number, Company_name in a single KBL file, if all have different concrete classifications. This is not a violation of the constraint for uniqueness of part number, since all KBL Parts are referencing the same single real part.

General Information

Attribute Value
Owner 2_Parts
Applied Stereotype
Base Classifier
Is Abstract true
Derived Classifiers Accessory, Assembly_part, Cavity_plug, Cavity_seal, Co_pack_part, Component, Component_box, Connector_housing, Fixing, General_terminal, General_wire, Part_with_title_block, Wire_protection


Name Type Mult. Description Owning Classifier
Part_number String 1

The part_number specifies the identifier of the Part. The format of the part number is user defined (company specific).

Company_name String 1

The company_name specifies the name of the organizational context in which the Part_number is defined.

Alias_id Alias_identification 0..*

The alias_id specifies an additional part_number that is used to identify the Part in another organizational context (e.g. company).

Version String 1

The version specifies the version identifier of the Part. A version cumulates and consolidates one or more single changes.

Abbreviation String 1

The abbreviation specifies a short name for a Part.

Description String 1

The description specifies additional information about the Part.

Localized_description Localized_string 0..*

The description specifies additional information about the object. The Localized_description provides the possibility to define descriptions for different language codes.

Predecessor_part_number String 0..1

The predecessor_part_number specifies the part number of the predecessor of the Part.

Degree_of_maturity String 0..1

The degree_of_maturity specifies the degree of maturity of a Part. Where applicable the following values shall be used: - ‘draft’ - ‘planning’ - ’equipment order’ - ‘disposition’

Copyright_note String 0..1

The copyright_note specifies copyright information for a Part.

Mass_information Numerical_value 0..1

The mass_information specifies the mass of a Part. Example: Valid values for the unit of the Numerical_value specifying the mass are ‘gram’, ‘kilogram’, or also ‘kg/piece’, ‘gram/meter’

Part_number_type Part_number_type 0..1

Defines the type of a Part_number since part numbers are used in the process to identify different characteristics. See the OpenEnumeration Part_number_type. The default value is ‘real part’ the attribute is not defined.


Outgoing Relations

Type Role Mult. Mult. Description
Change Change 0..* 1
Material Material_information 0..1 1
Processing_instruction Processing_information 0..* 0..1
External_reference External_references 0..* 0..*