The Value of Maintaining a Quality BIM Model

 

Introduction

Building Information Modeling (BIM) has emerged as a transformative force in the AEC (Architecture, Engineering, and Construction) industry. Recognizing its potential, market leaders have taken significant steps to adopt and integrate BIM into their processes. Design consultancy firms, too, are establishing dedicated BIM teams, acknowledging its critical role in the design phase.

Today, BIM models are widely employed for visualization, clash detection, and coordination. However, their utility extends far beyond these functions. A BIM model serves various purposes across the entire asset lifecycle—from project initiation to design, construction, cost estimation, asset management, facility management, renovation, and demolition.

This brings us to an essential question: "How can you trust your BIM model?" The reality is that the BIM model created at the project’s inception becomes the foundation for the building’s entire lifecycle—a span that may exceed 50 years. Given its evolving nature and long-term significance, ensuring the quality of the BIM model is now a top priority for stakeholders across the industry.

Linking BIM Quality, Life Cycle, and Client Needs

Purposes of BIM models in a building life cycle

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Purpose	Explanation
Conceptual Design	Helps visualize ideas and understand feasibility before actual development.
Detailed Design	Ensures accuracy and alignment with client and regulatory requirements.
Construction Planning	Facilitates scheduling, resource allocation, and clash detection.
Construction Execution	Enhances collaboration and real-time issue resolution.
Operation & Maintenance	Supports asset management and maintenance through a digital twin.
Renovation/Demolition	Assists in planning for a renovation or safe deconstruction of an asset.

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Read more on "How BIM Enhances Every Step of Construction Projects"

Understanding Client Requirements

The table above highlights the diverse applications of BIM models across an asset’s lifecycle. However, it is important to note that not all stages require the use of BIM. The decision ultimately depends on the client’s specific goals and challenges.

To effectively meet these needs, it is crucial to engage with the client early in the project. Start by understanding the exact problems they aim to address and their expectations for BIM. Keep in mind that clients might not always use precise industry terminologies, which underscores the importance of open communication. Multiple discussions may be necessary to gain clarity on their requirements.

Ensuring this understanding at the outset sets a strong foundation for the project, aligning the BIM model’s scope with the client’s objectives and paving the way for its successful application.

Additionally, each application of BIM involves specialized teams, processes, and tools, all of which contribute to developing a high-quality BIM model.

Factors affecting the quality of a BIM model & How to Overcome them

Significance of Defining Use Cases Early in a Project

Different types of clients approach projects with varying expectations for BIM use cases. Some clients envision using the BIM model throughout the entire lifecycle of the asset and are prepared to invest accordingly. Others may operate within tighter budgets, focusing solely on clash detection and coordination. Certain clients might prioritize project management while opting out of asset management, while others might start with clash detection and coordination with the intent to expand the model’s use over time. Additionally, some clients already own an asset and are interested only in asset management.

Regardless of the client type or their specific requirements, it is essential to define these use cases at the project's outset. The use cases directly influence how the model should be developed. For instance:

• To create a 4D BIM model, the 3D model must be structured to align with the project’s Work Breakdown Structure (WBS) in the schedule.
• For asset management purposes, specific parameters need to be incorporated into each model element.

By defining the use cases early, project teams can ensure the BIM model is developed in a way that aligns with the client's objectives and delivers value throughout the project lifecycle.

How People, Process, and Tools Drive BIM Model Quality.

People

Human involvement in BIM modeling is inevitable despite advancements in automation and AI. However, human errors can significantly impact model quality. Mistakes often arise from a lack of experience, expertise, or concentration. For example, to extract the accurate quantity of a concrete floor, the model must be created with precise dimensions and proper edge trims. Any deviation can result in incorrect quantities.

To mitigate this, the individuals involved in BIM modeling should approach their work as if they are physically executing construction on-site. Comprehensive training and regular guidance are critical to enhancing their skills and awareness.

Process

The process by which a BIM model is developed plays a pivotal role in ensuring quality. Adhering to well-defined project standards and workflows, typically set by the project manager, team lead, or specialized management is essential. A lack of standardized processes can lead to inconsistencies and quality issues. For instance, before modeling begins, it is crucial to establish proper coordinates, levels, and grids. Additionally, cross-verifying these elements across all linked models or formats is essential to avoid discrepancies.

Processes should be periodically reviewed and adjusted to ensure they align with the expected outcomes. Effective project management plays a vital role in this and also involves intermediate training sessions and rigorous quality checks. These checks can be performed by a third party(a person or a team) or by using specialized quality-checking tools to verify that the model meets all requirements.

Tools

Selecting the right tools for the task is equally important. The chosen software must align with project requirements, and system configurations should support its functionality. Ensuring that the software is up-to-date can prevent potential errors and compatibility issues. Conducting trial runs can help validate whether the tool produces the desired outcomes.

Additionally, leveraging quality-checking tools is an effective way to ensure that the BIM model meets the required standards. These tools can identify errors or inconsistencies, providing a reliable mechanism to uphold model quality. 

By focusing on the three pillars of people, process, and tools, stakeholders can significantly improve the quality of BIM models and drive successful project outcomes.

At Desapex, we go the extra mile to add value to our clients. Our team invests significant effort in understanding client pain points right from the initial stages through in-depth discussions a practice that not all service providers emphasize. By engaging in these meaningful conversations, we help clients identify the core issues they face, allowing us to position the right people and tools and establish an optimized process tailored to their needs. This proactive approach ensures that the solutions we provide not only meet but exceed client expectations, driving success in every project.

Want to Learn More About Desapex's BIM Model Validation Process?
Our experts are here to help you ensure accuracy and compliance in your BIM projects. Reach out to us today and discover how our validation process can streamline your construction workflows.

Contact us at sales@desapex.com