Archicad IFC GUIDs for all occurrences

IFC GUIDs from Archicad to dRofus Occurrences

dRofus automatically adds the IFC GUID from every instance in Archicad to all corresponding occurrences in dRofus. The IFC GUID (Globally Unique Identifier) is critical for keeping each element distinct and traceable across different software platforms and project stages. This underpins reliable data exchange, robust change management, and seamless collaboration in BIM workflows.

Why IFC GUIDs Matter

Interoperability: The IFC GUID acts as a universal key, allowing dRofus to match and synchronize data between Archicad and dRofus, as well as with other BIM tools that support the IFC standard. This ensures consistent information, even when models are exchanged or updated across systems.
Data Integrity & Change Tracking: Storing the IFC GUID for each occurrence lets dRofus track changes, manage versions, and avoid duplication-essential for large, collaborative projects.
Error Reduction: Using the IFC GUID as a common key minimizes mismatches or data loss during import, export, or synchronization. This ensures updates propagate correctly throughout the project lifecycle.
Seamless Visualization & Coordination: IFC GUIDs enable dRofus to link 3D model elements directly to their associated data, supporting features like highlighting, selection, and data-driven navigation.

These IFC GUIDs are added to the background without being defined in the configurations.

Using Items in Room when occurrences are split, each row will show the IFC GUIDs

How to Check IFC GUIDs in dRofus

Has IFC GUIDs column: Shows if any planned occurrences match modeled instances.
IFC GUIDs (text) column: Displays the specific GUIDs extracted from Archicad.

Using Occurrences in the Item Module shows planned occurrences vs modeled instances.

Example:
If a room has a planned quantity of six and six IFC GUIDs are listed, all planned items are modeled. If a room has ten planned occurrences but only one IFC GUID, nine more instances need to be modeled to meet the plan.

When Are IFC GUIDs Added to Occurrences?

Precondition	Action in Archicad	Expected Result in dRofus	IFC Guids transferred to dRofus occurrences?
Instance not linked to dRofus Item/Occurrence	dRofus Model Equipment panel → "Create in dRofus"	Item created and occurrence created with correct quantity and GUIDs	Yes
Instance linked to dRofus Item, no occurrence in dRofus exists	dRofus Model Equipment panel → "Add to dRofus"	Occurrence created, quantity and GUIDs match Archicad	Yes
Instance linked to dRofus Item, occurrence exists but quantity differs	dRofus Model Equipment panel → "Update in dRofus"	Occurrence updated, quantity and GUIDs match Archicad	Yes
Item linked, quantities differs	Synchronize Item occurrences	Occurrence updated, quantity and GUIDs match Archicad	Yes

IFC GUIDs are always kept in sync to ensure every occurrence in dRofus accurately reflects the modeled instances in Archicad.