Class name

Definition

(COM)ManagedElement

A common descriptive element for meta data with a status.

(COM)Entity

Basically, the same sense explained in the common text book of ER model and database. For instance, according to [24] , this can be described as a distinct object that needs to be represented. In short, an abstracted and generalized thing to express an object.

(COM)Status

A possible state which the ManagedElement and the Object in Table 2 can be in.

(META)Category

A category to classify the Entity. e.g., the Object in Table 2.

(META)Attribute

An item to express a feature, which the Category specifies.

(META)DataType

A data type to be specified to express the Attribute. The exact definition is specified in [18] [25] .

(META)Unit

A physical unit to be specified for the Attribute. The exact definition is specified in [18] [25] .

(META)ProductCategory

A specialized category to classify the Entity corresponding to a measured Object.

(META)DeviceCategory

A specialized category to classify the Entity corresponding to a sensor.

(META)ProductAttribute

A specialized item to express a particular feature, which the ProductCategory specifies.

(META)DeviceAttribute

A specialized item to express a particular feature, which the DeviceCategory specifies.

(META)MeasuredCondition

A specified description as measurement conditions when executing the measurement by using specified Entity corresponding to the measured Object or the sensor.

(META)StatisticType

The specialized data type to express an attribute related to statistics.