ISA95Property is a concept to represent characteristics for domain specific information. Accordingly ISA-95 defines that attributes that are application or industry specific are to be modelled in terms of properties and represented in property classes in the model. ISA-95 doesn’t describe a property as an attribute in UML, but describes a property as a Class. In OPC UA it can be represented by VariableTypes and Variables (see Table 5)

Table 5– Transformation rule of an ISA95Property

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ISA-95

OPC UA

Description

UMLClass

VariableType

Structure of the ISA95Property is defined by a VariableType, and an instance of the ISA95Property is represented by a DataVariableof the VariableType.

DataVariable