Internet of Things Architecture

Driver

+ licenseNumber

+ name

Worker

+ name

+ workPlace

Manager

+ groupName

+ name

Box

+ ID

+ stackable

Pallet

+ ID

Figure 41 : Example for flat entityType model.

EntityType

LoadCarrier

+ ID

+ size

+ weight

Human

+ name

Box

+ stackable

Pallet

WoodenPallet PlasticPallet

+ colour

Driver

+ licenseNumber

Worker

+ workPlace

Manager

+ groupName

Figure 42 : Example for hierarchical entityType model.

Viewpoint for modelling entityType hierarchies

EntityTypes are similar to classes in object-oriented programming, so UML
class diagrams as shown above are suitable for modelling entityTypes. As
shown in Figure 42 : Example for hierarchical entityType model the
generalization relation can be used for modelling sub-classes of entiyTypes,
creating a hierarchy of several entityTypes inheriting attributes from its super-
classes. Alternatively, ontology languages like OWL also provide the means for
modelling classes and sub-classes, so they can also be used for modelling type