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Equipment in any industrial process is usually modeled as entities or classes in computerized systems. The class name usually
reflects the type of equipment. Objects from such classes are called Real World Objects (RWOs) in this document. RWO classes
have properties describing equipment characteristics (for example, size, length, geometries, material, nameplate data) as
well as application specific data (for example, impedance parameters, state estimated values). Depending on the purpose of
a system and the managed (industrial) process the RWOs are of different types and contain different properties. Some RWOs
are common between systems and independent of industrial process like process variables; that is, measurement (state) and
control variables. Other RWOs like transmission lines and breakers are specific to power transmission.
RWO will typically have properties depending on the RWO type (for example, measurement, transformer) and what application
or usage the RWO is involved in. Properties are defined per type of RWO.