BIM

Common Data Environment (CDE)

Single trusted location for all project information. Mandatory under ISO 19650 with WIP→Shared→Published→Archived states.

Also calledcdecommon data environmentwip shared published archivedinformation containerbim 360
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Definition

Common Data Environment (CDE) is the single source of project information accessible to all project stakeholders — designers, contractors, sub-contractors, and the client. Implements the ISO 19650 principle of single-source-of-truth for project data. Information containers (models, documents, drawings) are stored in the CDE with standardised naming conventions and access control. Indian CDE platforms: Autodesk Construction Cloud (BIM 360), Procore, BIMcollab, Aconex, Tekla TRIMBLE Connect.

CDE structure: (1) Work in Progress (WIP) — drafts and ongoing work. (2) Shared — content shared with project team for review. (3) Published — approved and final. (4) Archive — historical record. Information flow: WIP → Shared (after internal review) → Published (after team approval) → Archive (after milestone). Each transition requires sign-off; ISO 19650 mandates clear procedures.

Key CDE benefits: (a) Single source of truth — all project information accessible to authorised stakeholders. (b) Version control — documents progression tracked; old versions archived. (c) Audit trail — complete history of who did what when. (d) Clash detection — federated models for inter-discipline coordination. (e) Quality control — formal review/approval before content moves between containers. The most-overlooked aspect of Indian CDE implementation: governance and discipline. CDE works only when all stakeholders use it — not as an alternative to email and file sharing. Major Indian projects increasingly require CDE compliance via contractual obligations.

Where used
  • All major BIM-driven projects with ISO 19650 compliance
  • Government and PSU projects with formal information management
  • Major commercial high-rise and infrastructure
  • Pre-fabricated industrial buildings with multi-discipline coordination
  • Complex renovation projects
Acceptance / threshold
Per ISO 19650 + project BEP: CDE platform selected; access control implemented; naming conventions standardised; review/approval workflows established; audit trail maintained; archive at project handover.
Frequently asked
What is Common Data Environment (CDE)?
CDE is the single source of project information accessible to all project stakeholders — designers, contractors, sub-contractors, and the client. Per ISO 19650. Information containers (models, documents, drawings) stored with standardised naming conventions and access control. Common Indian platforms: Autodesk Construction Cloud, Procore, Aconex, Trimble Connect.
What are the CDE containers?
ISO 19650 mandates four containers: (1) Work in Progress (WIP) — drafts and ongoing work. (2) Shared — content shared with team for review. (3) Published — approved and final. (4) Archive — historical record. Information flows: WIP → Shared (after review) → Published (after approval) → Archive (after milestone). Each transition requires sign-off.
Why use CDE in construction?
Benefits: (1) Single source of truth — all project information in one place. (2) Version control — old versions archived. (3) Audit trail — who did what when. (4) Clash detection — federated models for inter-discipline coordination. (5) Quality control — formal review/approval. Cost: implementation 1-3% of project value; saves 5-15% through better coordination and reduced field rework. ROI typically 3-10× for major Indian projects.
Related terms
ISO 19650 Series
5-part international standard for BIM information management. Parts 1-5: concepts, delivery, operations, exchange, security.
Building Information Modelling (BIM)
ISO 19650 information management with BIM. India has no published IS BIM standard — projects reference ISO directly.
BIM Roles — Manager, Coordinator, Modeller
BIM Manager (firm), Project BIM Manager (one project), Information Manager (enforces ISO 19650), BIM Coordinator (clash), Modeller (authoring).
Uniclass / OmniClass / Classification
Uniclass 2015 (UK) is the most-used BIM classification on Indian projects. India has no published classification.
Industry Foundation Classes (IFC)
Open ISO standard file format for BIM exchange. IFC 4.3 ADD2 supports buildings + infrastructure.
LOD 500 (As-Built / FM)
Field-verified element representation suitable for facilities management. Linked to operational data.
COBie (Construction-Operations Building information exchange)
Open spreadsheet format for handing operational data (assets, spaces, warranty) from construction to FM.
BEP & EIR — BIM Execution Plan / Exchange Information Requirements
EIR = client requirements (in tender). BEP = how the contractor will deliver them. MIDP/TIDP = the schedule.
Level of Development (LOD) / LOIN
AIA LOD 100-500 vs BIMForum LOD Spec vs ISO 7817-1 LOIN. Defines geometric/info detail per object per milestone.
LOD 200 (Schematic Design)
Generic systems, approximate quantities, size, shape, location, orientation. Suitable for schematic stage.