Agent skill · datadrivenconstruction
oce-scheduling-4d5d
4D scheduling and 5D cost modelling in OpenConstructionERP: build task schedules, link tasks to BIM elements and BOQ lines, roll up the cost model over time, and export Gantt/sequence views. Use for schedule-cost integration workflows.
What it needs
About 1k tokens when loaded.
What this skill does
4D Scheduling & 5D Cost Model in OpenConstructionERP Concepts 4D = schedule + BIM: every task can reference BIM elements so the sequence is visual. 5D = schedule + cost: cost roll-ups per task/phase from linked BOQ lines. Both live on the same task graph — one source of truth for time and money. Workflow 1. Build the task graph — tasks, durations, dependencies (FS/SS/FF), milestones, critical path. 2. Link BIM elements to tasks (from oce-bim-takeoff) — visual sequencing and progress colouring. 3. Link BOQ lines to tasks (from oce-estimate-boq) — each task carries its direct cost. 4. Roll up — phase/project totals, cash-flow curves (cost over time), SPI/CPI views. 5. Track — daily diary entries and punch items update actuals; variance reports compare plan vs actual. Key endpoints tasks: create/update, dependencies, assignees, status board scheduling: timeline data for the Gantt, milestone markers cost model: GET-side roll-ups per task/phase; export to XLSX/PDF reports Integration rules One region/currency per project — the cost model never blends currencies. Quantity changes from BIM re-link update BOQ line quantities, which update the cost model in turn. Re-validate the BOQ after bulk changes; schedule conflicts surface in the timeline. Best practices 1. Keep dependencies explicit — the critical path is only as good as the logic. 2. Use milestones for payments/tender gates, not for activity progress. 3. Compare plan vs actual weekly; adjust the forecast, not history. 4. For multi-project portfolios, roll up by project and by currency group (never blended).
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills datadrivenconstruction/oce-scheduling-4d5d