Note: There is a newer version of this specification see KBL 2.5.sr1

A Unit is a quantity chosen as a standard in terms of which other quantities may be expressed. Example: A unit of square milli metre is defined as a SI_unit with Si_unit_name "metre", Si_prefix "milli" and Si_dimension "square".

General Information

Attribute Value
Owner 6_Foundation
Applied Stereotype
Base Classifier
Is Abstract false
Derived Classifiers


Name Type Mult. Description Owning Classifier
Unit_name String 0..1

The unit_name specifies the name for a non SI unit. Note: This attribute shall be used to specify units like ‘kg/100 pieces’

Si_unit_name SI_unit_name 0..1

The si_ unit_name specifies the name for a SI unit. Example: ‘gram’, ‘metre’

Si_prefix SI_prefix 0..1

The si_prefix specifies the prefix for a SI unit. Example: ‘milli’, ‘kilo’

Si_dimension Unit_dimension 0..1

The Dimension specifies the dimension of a SI_unit. Example: “square”, “cubic”.


Incoming Relations

Type Mult. Role Mult. Description
KBL_container 1 Unit 0..*
Value_with_unit 0..* Unit_component 1