- PAS 1192-2describes Building Information Modelling (BIM) as the “process of designing, constructing or operating a building or infrastructure asset using electronic object-oriented information.”
- ISO 19650-1 :BIM – use of a shared digital representation of a built asset to facitite design construction and operation processes to form a reliable basis for decisions.
- BIM is getting the right information to the right people in the right format at the right time –BRE
So BIM is thecorrect management of project information and processes during the whole life cycle of a project.
What is BIM Maturity?
BIM maturity is referred to as Stage 1 to Stage 3 in ISO series (previously level 0 to level 3 PAS)
- BIM Stage 1is the use of BIM enabled software in a non-ISO structured way (lonely BIM)
- BIM Stage 2is the use of BIM enabled software with the correct structured processes, CDE’s federated models and supporting documentation
- BIM Stage 3is not a reachable goal and likely will be aspirational goals
BIM Roles on Projects
- Client or Lead Appointing Party
- Employer can be anyone in employed by client
- Lead Supplier or Lead Appointed Party (the project Lead ex. Architect)
- Appointed Party or Task Teams (rest of design team)
BIM Dimensions
2D –Two-dimensional (Line Work) (CAD and Drawings)
3D– Three dimensional (Object Modeling)
4D– Time (3D modelling with Time Scheduling) (Tantek 4D)
5D– Cost (3D models with estimating) (Last dimension)
BIM Standards
ISO 19650 Series
Supporting Documents
- OIR– Organisational Information Requirements (What the client needs at organisational level)
- AIR– Asset Information Requirements (OIR being used by professionals on client side to figure out information required for Asset [project]) (ie. If Architect or engineers are needed)
- EIR– Exchange Information Requirements (Clients Brief)
- BEP– BIM Execution Plan (Pre and Post appointment) (basically how we will execute the project)
- AIM (from AIR)– Asset Information Model – Information related to the Asset or Assets (information that is needed for operation of the asset during assets life cycle (Data Sheet, instruction manual)
- PIM (from EIR)– Project Information Model – Information related to asset or assets developed during design and construction of a project (building models)
