Contextual commenting
Tag comments directly onto elements at the exact moment they matter in the schedule.
Traditional BIM review tools make comments model-wide, so an observation about the second floor slab placement on Week 12 may get missed when the same element changes for Week 18. In 4D.io, comments are pinned to both geometry and a specific point in time. That way, feedback about a formwork sequence on Day 41 stays tied to that version of the model—even if later edits reshape the geometry entirely.
This temporal binding keeps the discussion relevant and actionable. An architect can flag a clearance issue between steel beams and ductwork as they appear during the MEP rough-in phase, not when the final model is rendered. Contractors reviewing comments later can see not just what was noted, but when—crucial for understanding whether an issue was resolved mid-sequence or carried into later stages.
Teams using 4D.io report faster resolution cycles because comments include full 4D context: object ID, timeline position, and camera orientation. Reviewers don’t waste time locating the referenced element or reconstructing the phasing moment—it’s all embedded in the comment thread. This clarity reduces back-and-forth and keeps critical path decisions tightly coupled to field conditions.

