An IDM-Based Approach for Information Requirement in Prefabricated Construction

Table 7

Classification of entities and attributes.

Entity	Attribute	Data source
Stakeholder	Reference number	Table 5
	Name	Real name of specific stakeholders
	Contact information	Real contact information of stakeholders
IFC element	Reference number of IFC element	IfcGloabllyUniqueId
	Element name	IfcLabel
	Detailed description	IfcText
	Reference number of exchange requirement items	The encoding
	Exchange requirement items	The extended IDM (Information Delivery Manual)
	Required level	The extended IDM (Information Delivery Manual), “R” for “Requisite” and “O” for “Optional”
	Change log	Records of changes
Delivery-related files	Reference number of files	Table 6
	File name	File name
	Reference number of stakeholders	Table 5
	Creation date	Time records of file creation
	Storage path	Storage path in the system