How do you balance the trade-offs between the level of detail and the complexity of your BIM models?

Well, If we talk about LOD in terms of ISO 19650, It would be more comprehensive to mention level of information need which level of detail is a part of it. So, As client determine the required Level of detail in his EIR so the more information, geometry quality and properties bind to the model elements till it can be extracted to DATA Complexity is about the number of elements, their relationships, the level of interconnections, and the sophistication of the model. It includes factors like detailed geometry, nested components, parametric constraints, and the amount of metadata attached to elements.

Dans un projet, le LOD et la complexité sont importants, mais l'élément crucial est de définir les usages de la maquette avant tout. Cela détermine le LOD/LOIN nécessaire. La qualité des données alphanumériques dans les modèles BIM est souvent plus critique que le degré de détail géométrique, car elle impacte directement la gestion, l'exploitation et la maintenance des batiments.

Project Requirements: Tailoring the LOD to specific project requirements & phases, ensuring that models are detailed enough to meet needs without unnecessary complexity. Stakeholder Input: Consulting with stakeholders to determine the essential information needed for decision-making and eliminating non-critical details. Scalable Models: Creating scalable models that can be adjusted in complexity as the project progresses, starting with broader details and refining as needed. Efficiency Focus: Prioritizing details that enhance project efficiency, such as clash detection and construction sequencing, while avoiding overcomplication. Regular Reviews: Conducting regular reviews to assess if the current LOD is optimal or requires adjustments.

Clients often misunderstand the true value of setting the right LOD. They tend to ask for higher LOD, thinking it might result in a better information management, but it often leads to the opposite. LOD should be set high enough to include all the necessary information, but should not exceed this level, to avoid unnecessary wasted hours for adding details in 3D Space only. Complexity on the other hand should always be reduced to minimum. It's no secret that projects can often go not as planned, and higher the complexity the higher the chance of it happening. And all of that leads to increased budget and longer delivery schedule. So LOD should be set in accordance with the project complexity to ensure that level of detail is sufficient.

Less information of high quality is worth much more than excess information that can't be trusted. Decide on the level of information you really need, and consider how to ensure the quality of the information. To automate the verification of information quality, I recommend specifying information deliverables according to the IDS standard. To ensure interoperability, rely on common coarse-level IFC. To increase consistency at a high level of granularity - rely on shared classification systems. You can find many of them in the bSDD platform (buildingSMART Data Dictionary).

Definir metas de Nível de Detalhe (LOD) e complexidade em projetos BIM requer uma abordagem equilibrada. Compreenda as demandas do projeto, alinhe expectativas com partes interessadas, ajuste as metas de LOD de acordo com a escala e propósito, e otimize a eficiência considerando a precis?o versus desempenho do sistema. Adotando uma abordagem flexível, é possível encontrar o equilíbrio ideal para atender aos requisitos específicos do projeto.

LOD standardization is essential for efficient BIM workflows. While different projects have unique needs, establishing consistent LOD levels across multiple projects can streamline processes, improve data sharing, and reduce errors. However, it's crucial to align these standards with specific project requirements to ensure the model effectively supports project goals.

En complément, il est important de faire attention au co?t global qu'engendre la collecte, la structuration, le partage, le stockage et surtout la mise à jour de la donnée. Cette analyse, à réaliser en amont de projet, est nécessaire pour sécuriser la démarche BIM.

Balancing the LOD and complexity in BIM models is crucial for project success. LOD determines the granularity of information, from geometry to materials and data, while complexity involves the variety of elements and their interactions. Higher LOD and complexity can improve visualizations and analyses but demand more resources, which may not always be justifiable. The LOD should align with the needs of stakeholders and shareholders, aiding in design, execution, handover, and operations. It's essential to have a BIM Execution Plan (BEP) agreed upon, with the LOD well-defined and often with many details and samples included as an appendix.

Una de las cosas, que se debe de contemplar siempre, es entender que bajo la norma ISO 16950, se consideran entregables de información del Proyecto (denominado PIM) tanto información estructurada como información no estructurada. Cuando se habla de LOD - debemos de entender - que si hablamos a nivel de desarrollo geométrico para generar ciertos entregables la información gráfica proporcionada: videos de recorrido, vistas 3D impresas, corresponden a información no Estructurada. Es necesario entender que del mismo modelo BIM, no puede ni debe de salir todo. Eso complejiza demasiado los trabajos de elaboración del Modelo y puede generar confusión y mal aprovechamiento de los recursos. Es mejor hablar de LOIN

Developing custom applications tailored to a project's needs is an innovative strategy for managing LOD and complexity. These applications address specific project requirements, streamlining processes, automating tasks, and enhancing the BIM model's functionality. They enable teams to adapt the model throughout different project phases, promoting efficiency and accuracy. By leveraging custom applications, it streamlines workflows, integrates data seamlessly, and fosters collaboration among stakeholders. This approach ensures the model's adaptability to evolving project needs, optimizing project management strategies efficiently.

ISO 16950 standard categorizes structured and unstructured information as Project Information Deliverables (PIM). While discussing Level of Development (LOD), it is important to note that geometric development level is used for creating specific deliverables. Instead of attempting to include every possible piece of information in a Building Information Model (BIM), it is more useful to focus on Level of Information Need (LOIN). By focusing on LOIN, project teams can identify the specific information that stakeholders need at each stage of the project. This helps ensure that the BIM model is developed to meet the actual needs of those who will use it, rather than just including every possible piece of information.

By managing LOD and complexity throughout the project lifecycle, project teams can ensure that the BIM model continues to meet the project's specific requirements, leading to improved decision-making, cost estimation, construction planning, and model performance. Managing Level of Development (LOD) and complexity throughout the project lifecycle involves continuous monitoring and adjustment to ensure that the BIM model meets the project's specific requirements. This can be achieved by establishing clear criteria for LOD and complexity at the project's outset and regularly reviewing and updating these criteria as the project progresses. Collaboration with project stakeholders is essential to ensure the model's level of detail &accuracy.

Regarding the latest BIM Level of Development (LOD) updates, it's essential to recognise the shift towards more dynamic and nuanced modelling processes. These updates facilitate a more gradual and detailed development of BIM models, aligning closely with the evolving requirements of construction projects. The focus is on increasing the flexibility and adaptability of LOD in response to real-time project needs and stakeholder feedback. This approach enhances the efficiency and accuracy of BIM processes, ensuring that models remain relevant throughout the project lifecycle. For a comprehensive understanding of the latest LOD updates, it's best for you to consult the BIM Forum's LOD Specification.

Evaluating and optimizing your Level of Detail (LOD) and complexity performance in BIM involves a delicate balance between achieving sufficient information for your project needs while maintaining efficient workflows and avoiding software slowdown. 1.Evaluating LOD and Complexity 2.Optimizing LOD and Complexity 3.Set LOD standards for different project phases 4.Utilize model views and filters Striking the right balance between detail and efficiency will lead to smoother workflows, reduced software strain, and ultimately, better project outcomes.

?????? is related to elements in models not for all the project . So just use data or 2d details for any required information, it is not efficient to have a complex to get an excellent project done . It's all about data exchange and collaboration .

Más complejidad, significa más equipo o más tiempo. Eso repercute en el presupuesto. Así que cuanto mayor LOD, más caro es el proyecto BIM.

Balancing the trade-offs between the level of detail and the complexity of BIM models involves aligning model intricacy with project requirements while maintaining compliance with BIM standards. Prioritize essential details for accurate representation while avoiding unnecessary complexity to keep the model efficient. Regularly communicate with stakeholders to understand their needs, and adjust the level of detail accordingly to strike the right balance for effective BIM modeling in adherence to standards.

Maybe the approach is to swop out the final model elements for placeholders with enough geometry, data and documents connected to inform the performance, clearly identify the objects and provide informed decision-making. Then as the project advances it’s swapped out with the full-monty… but, the disclaimer, NDA, and contract aspects need to be in place to keep good manners and governance in place?