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. |