BIM implementation is difficult when the team begins modeling before agreeing on the information it needs. Clear requirements, responsibilities and review stages help the team choose a workable process.
Five BIM implementation problems to address
1. Requirements are open to interpretation
Describe what each deliverable will be used for, who will receive it and the information it must contain. Confirm the file formats, software versions, coordinates and issue dates. Resolve conflicting instructions before they enter the model.
2. A previous execution plan is copied without checking it
A template is a starting point. The BIM execution plan must reflect the current project's requirements, delivery team and agreed methods.
The UK BIM Framework Guidance Part E, Edition 1 (September 2020) explains the BIM execution plan in the tendering and appointment process. Use the requirements that apply to the project; referencing guidance does not by itself establish compliance or certification.
3. The expected model exceeds the agreed scope
A rendered view, a coordination model and an asset-information deliverable need different content. Agree on the elements, attributes, detail and accuracy required for each use.
Record exclusions and the information the client or other consultants must supply. Changes to those requirements should be reviewed for their effect on effort and dates.
4. Delivery responsibilities are unclear
Identify who creates, checks, shares and approves each information package. Agree on the exchange schedule and how issues will be resolved.
- Which elements and information must be delivered at each stage?
- Who supplies the reference information and owns each modeling task?
- Which checks must pass before the information is issued?
- Who accepts the deliverable, and when is it needed?
5. Terminology hides the actual requirement
Explain abbreviations and use examples. Define terms such as level of information need, model status and coordination tolerance within the project documents instead of assuming everyone uses them in the same way.
BIM is a process for managing built-asset information. Buying software alone does not establish the team's workflow. Training, available time and data exchange should be considered alongside the authoring tools.
Start with an agreed deliverable
Test the process on a defined model area or information package. Review the inputs, checking effort and exchange results before extending it to the rest of the project.
For BIM modeling support, provide the current requirements and execution plan, reference files, templates and review instructions. Resolve missing information with the responsible project team before work proceeds.
