How to improve building information model quality

Wouldn’t it be Lean to use the design team’s or sub’s building information models for construction coordination, estimating, and scheduling? For the last years, the focus in the AEC industry has been re-purposing the design team’s building information models for construction. Quality assurance is commonly used to describe the task of inspecting the model system by system raising any areas for improvement, omissions or mistakes and comparing the current drawing set to the way it was modelled in 3D. This process plays a major role in delivering quality building information models in conformance to requirements.

What is the meaning of quality ?

Quality means fitness for use. A high-quality building information model does what its customers want in such a way that they actually use the building information models as defined in the BIM management plan under the BIM uses and/or goals.

What is conformance to requirements?

Conformance at the model level is a subset of the overall quality definition. Model quality means conformance to requirements. Requirements include LOD, procedures, specifications, plus accuracy of the building information model geometries. Conformance is the ability of a model to meet its BIM specifications. BIM specifications are an interpretation of what the customer, construction or design team need.

The BIM model quality issues can be communicated with BIM track and checked by using the following steps:

  1. Establish the project design targets and goals in a BIM management plan and setup BIM Track project settings;
    (Ex.: Reduction of change orders on field.)
  2. Define the construction professionals that will be targeted by BIM and add them to BIM Track;
    (Ex.: Architect, Engineers, builder, subs, etc.)
  3. Develop the elements of the new design that will need to meet the requirements and run the check;
    (Ex.: Ceillings and ducts elevations, Precast panel alignment with slab edge, curtain connection with bounding structural steel beams, mechanical equipment maintenance clearance is sufficient and free of obstructions, elements in the model are properly classified for quantity extraction, etc.)
  4. Develop process controls such as clash detection, code checking and standards checking (Tools like BIM Assure) to be able to deliver compliant models to the customers;
  5. Identify stakeholders liable for model quality and assign them to issue;
  6. Track solving time and coordination performance using BIM Track metrics.

Never assume model quality will happen by itself.  Check your models otherwise all the super benefits sold under the magic name of BIM will never pay off.

“Total quality management is a journey, not a destination.” ~Berry