application • construction space ontology
5.4 Specification of the entities In the following tabs specifications about classes, relationships and properties are provided.
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below and next pages Tab. 4 Specification of entities, relations and properties in the space ontology
1. OWL Class Entity definition
WORKSPACE A workspace represents a physical entity within the construction site. It can be used for various purposes according to the proposed sub-classes. The list of properties and motivations for their computation within the system are listed in the tabs.
hasID:
type: name assignment
hasCapacityDimension:
type: real number assignment
hasDimension:
type: real number assignment
Indicates the dimension of the footprint area of a rectangular prism that acceptably approximates the workspace.
hasSmallestUnit
type: real number assignment
If the workspace is divisible, this property indicates the dimension of its smallest units. For example, some construction objects such as material are in packages, boxes or other units. When being located on site, they can be located in separated units if occur. The dimension of the smallest unit is needed to decide the size of split location. Object such as equipment are rigid in size and this aspect is reflected in the flexibility property
hasHeight:
type: real number assignment
Includes the highest point of the space
hasCentroid (X-Y axis): Datatype Properties:
type: real number assignment
Indicates coordinates of geometric centroid of footprint
hasLocation (X-Y axis):
type: real number assignment
Indicates coordinates of workspace location after that the site simulation is carried out and its optimal allocation is defined
hasMobility:
type: boolean assignment (YES/NO)
Indicate if the object is mobile or stationary
hasMovability:
type: boolean assignment (YES/NO)
Indicates if it is acceptable to change the location of object during the project
hasContainability:
type: boolean assignment (YES/NO)
Indicates if the object can be used later to contain another object
hasFexibility:
type: string assignment
Indicated the flexibility of object’s shape (flexible/sizable/rigid)
hasOrientation:
type: real number assignment
The angle by which the object is rotated when located on site referred to its reference construction product
hasPotenzialHazard:
type: real number assignment
A value which represents a rough quantification of safety hazards related to the activity whose workspaces are simulated
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