Build an IFC 4D Construction Task Sequence Synchronizer

Correlate IFC architectural components with construction schedules using ifc4d conventions. Identify elements missing work package assignments and flag schedule sequence anomalies.

Construction project scheduler

Upload IFC structural files alongside Gantt schedule task arrays.

Link IFC element identifiers to scheduled construction tasks.

Verify task predecessors and detect unscheduled structural elements.

Generate 4D synchronization logs for project superintendent review.

Split-pane web view displaying Gantt timeline on the left and IFC entity schedule matrix on the right.

Use open-source synthetic IFC models combined with standard CSV task schedules. Starter examples below are synthetic. They are not downloaded records.

IfcOpenShell Applies the ifc4d module referenced in IfcOpenShell to link IFC entities with project management timelines.

mastra-ai, fastapi. Mastra AI provides deterministic workflow orchestration to trace entity-to-task relationships and schedule states. Local or hosted LLM with fast structured JSON output for linking descriptions to tasks.

Submit runnable source, pinned dependencies, setup commands, a working interface, example outputs, and a recorded end-to-end demo. Include tests and an action log.

Links IFC component GUIDs to scheduled task IDs.

Flags structural elements lacking corresponding task assignments.

Highlights chronological dependencies where tasks precede element prerequisites.

```json [ { "input": { "tasks": [ { "task_id": "T1", "name": "Pour Footings", "start": "2025-04-01", "end": "2025-04-05" }, { "task_id": "T2", "name": "Erect Columns", "start": "2025-04-06", "end": "2025-04-10" } ], "elements": [ { "guid": "col-01", "type": "IfcColumn", "task_id": "T2" } ] }, "expected_output": { "synchronized": true, "assigned_elements": 1, "unassigned_elements": [], "schedule_alerts": [] } }, { "input": { "tasks": [ { "task_id": "T1", "name": "Pour Footings", "start": "2025-04-01", "end": "2025-04-05" } ], "elements": [ { "guid": "col-02", "type": "IfcColumn", "task_id": null } ] }, "expected_output": { "synchronized": false, "assigned_elements": 0, "unassigned_elements": [ "col-02" ], "schedule_alerts": [ "Element col-02 has no assigned construction task." ] } } ] ```

Simulates schedule linkages; does not issue live contractor dispatch orders or change construction site operations. Use mock external writes. Require human review before any real deployment.