2022-12-18T18:40:56Z

NXUS-BIM:

BACKGROUND

BIM protocols for an organization or project may state that Appointed Parties must deliver the project information files in accordance the agreed IM protocols. The industry sometime finds that Appointed Parties agree to implement BIM processes as the source of their design, and that their deliverables will be derived, exported or 'cut' from the project BIM volumes, but they fail to do so and instead implement exo-BIM processes. Due in some cases to lack of skills and competency with the designated design team.

What is sometimes reported by Information Managers and BIM Coordinators are attempts by some consultants to develop their exo-BIM design in 2D CAD files exported (by a third party in some cases) from the other consultants federated 3D model volumes. The resulting exo-BIM 2D design developed outside of the colaborative process will not take in to account design issues including clashes with other consultants's design intent.

A disparity and time shift between the live 3D federated models typically exchanged fortnightly on the CDE and the exo-BIM derived design occurs, this results in innacuracy, failure to collaborate effectively, delays on site and reduced overall value to the client.

CONCEPT

"Information Rejection". IR is the scenario whereby an Appointed Party or supplier attempts to exchange files on a CDE that are: 
 
- Not derived from the project team's 3D BIM volume(s) 
- CAD files reverse-BIM'd in to 3D volumes by a third party 
- Exo-BIM data not exported from the BIM volumes e.g. manually added to spreadsheets 
- Non-compliant with project BIM protocols 
- 2D Drawings not derived from the 3D BIM volume(s) 
 
The potential consequences for having exchange information rejected are: 
 
- Responsibility for causing delays 
- Charges imposed for delays 
- Percentage of fees withheld 
- Termination of appointment

DETECTION

To detect the occurance of attempts to exchange drawings and data not derived from the required 'live' 3D BIM volume, the BIM protocols must state that any file exchanged on the CDE must have an associated 3D BIM Volume to verify as the source of that information.

Where a clear dsparity between the two occurs, or there is an absence of a 3D BIM Volume to verify the drawing or data against. That will be deemed a breach of the agreed rules and information Rejection will be the resulting action.

PREVENTION

Create a BIM Services Agreement or similar, to be signed by each Appointed Party or Supplier in a Task Team prior to appointment to a project.

Amongst the descriptions of how and why Appointed Party's must read and understand the BIM protocols, it will be neccessary to defne the resulting actions that will be applied to the responsible party when their exchanged information on the CDE is discovered to be derived from exo-BIM sources and methods.

EXEMPLAR

Below as a typical example of how to define the circumstances and outcomes to Appointed Party if they fail to apply BIM processes in the design and exchanged files:

Information Rejection:

Starting from the first file exchange uploaded to the CDE, all drawings, details, schedules and other data file exchanged will be verified against your 3D .RVT/.IFC model exchanged at the same cycle. Be aware that if the files are found not to be derived from this 3D file, all exchanged files will be rejected and notice given to you for deviating from this agreement. Rejection of your files will have negative consequences with regards to your fees and potential charges imposed for causing delays. Your appointment to this project may also be terminated for breaching this agreement. Refer to the contracts director for further details.

Exo-BIM

2022-12-18T18:20:00Z

NXUS-BIM:

Exo-BIM

2022-12-18T18:14:57Z

NXUS-BIM: Created page with "Exo-BIM describes a design or data authoring process conducted outside of the central collaborative BIM process and its federated model volumes. The method or process is external..."

Information Rejection

2022-12-12T16:59:46Z

NXUS-BIM: Created page with "BACKGROUND BIM protocols for an organization or project may state that Appointed Parties must deliver the project information files in accordance the agreed protocols. The indus..."

BACKGROUND

BIM protocols for an organization or project may state that Appointed Parties must deliver the project information files in accordance the agreed protocols. The industry sometime finds that Appointed Parties agree to implement BIM process in their design, and that their deliverables will be derived exported or 'cut' from the project BIM volumes, but they fail to do so. Due in some cases to lack of skills and competency.

What is sometimes reported by Information Managers and BIM Coordinators are attempts to develop the design in 2D CAD exported (by a third party in some cases) from the other consultants federated 3D models. The resulting 2D design developed outside of the colaborative process will not take in to account design issues including clashes with other consultants's design intent.

A disparity and time shift between the 3D federated models typically exchanged fortnightly on the CDE and the non-BIM derived design occurs, this results in innacuracy, failure to colaborate effectively, delays on site and reduced value to the client.

CONCEPT

"Information Rejection". IR is the scenario whereby an Appointed Party attempts to exchange files on a CDE that are not: 
 
- Derived from the 3D BIM volume(s) 
- CAD files reverse-BIM'd in to 3D volumes 
- Data not exported from the BIM volumes e.g. manually added to spreadsheets 
- Non-compliance to project BIM protocols 
- 2D Drawings not derived from the 3D BIM volume(s) 
 
The potential consequences for having exchange information rejected are: 
 
- Responsibility for causing delays 
- Charges imposed for delays 
- Percentage of fees withheld 
- Termination of appointment

ACTION

Create a BIM Services Agreement or similar, to be signed by each Task Team prior to appointment to a project.

Amongst the descriptions of how and why the Appointed Party must read and understand the BIM protocols, it will be neccessary to defne the actions that will be applied when non-BIM processes are wrongly be implemented.and discovered on the CDE.

EXEMPLAR

Below as a typical example of how to define the circumstances and outcomes to Appointed Party if they fail to apply BIM processes in the design and exchanged files:

Information Rejection:

Starting from the first file exchange uploaded to the CDE, all drawings, details, schedules and other data file exchanged will be verified against your 3D .RVT/.IFC model exchanged at the same cycle. Be aware that if the files are found not to be derived from this 3D file, all exchanged files will be rejected and notice given to you for deviating from this agreement. Rejection of your files will have negative consequences with regards to your fees and potential charges imposed for causing delays. Your appointment to this project may also be terminated for breaching this agreement. Refer to the contracts director for further details.