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It builds on the AIA LOD schema by adding definitions and illustrations across different building systems and project stages for design, construction, and operation. The specification explains how graphical representations may imply greater accuracy than exists and sets expectations through structured, detailed input and information requirements. It is organized using CSI Uniformat 2010 and Omniclass with expanded subclasses and includes licensing and guidance for responsible educational use.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/lod-specification-part-i-educational-and-informational-guide/648292/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/lod-specification-part-i-educational-and-informational-guide/648292.png","ImageObject",300,407,{"name":92,"@type":93},"Cipher","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-25","2026-10-23",true,{"@type":102,"interactionType":103,"userInteractionCount":8},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the purpose of the LOD Specification Part I?","Question",{"text":112,"@type":113},"It is a reference tool meant to improve quality of communication among BIM users about the characteristics of elements at different development stages.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does the document relate to the AIA LOD schema?",{"text":117,"@type":113},"It expands upon the AIA LOD schema by providing additional definitions and illustrations for BIM elements across different building systems and lifecycle stages.",{"name":119,"@type":110,"acceptedAnswer":120},"Does the specification require specific LOD levels for project phases?",{"text":121,"@type":113},"No. It does not prescribe required LOD levels for specific design and construction phases; that decision is left to each project team.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},648292,1792919767,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":8,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},687208528416,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","2024  \n2005 2019 2022   \nLEVEL OF DEVELOPMENT  \nLOD SPECIFICATION  \nPART I  \nImage Source: DPR Construction  \nCollaborating Organizations  \nAIA Contract Documents  \nAmerican Institute of Steel Construction  \nAmerican Society of Landscape Architects  \nBIM Forum Ecuador  \nbuildingSMART Ecuador  \nbuildingSMART USA  \nDesign-Build Institute of America  \nNational Institute of Building Sciences  \nUS Institute of Building Documentation  \n[Www.BIMforum.org/LOD](Www.BIMforum.org/LOD) Copyright © 2024 BIMForum  [www.BIMforum.org](www.BIMforum.org)  \n2024 LOD Specification  \nNothing contained in this work shall be considered the rendering of legal advice. Readers are responsible for obtaining such advice from their own legal counsel. This work and any forms herein are intended solely for educational and informational purposes.  \nAll images are intended to illustrate building conditions in compliance with common building codes. However, the images do not take into account site specific conditions, regional building codes and other important information that may require a material change for specific projects. These illustrations do not make representation for fitness for a particular project nor for code or design compliance.  \nCopyright © 2024 by BIMForum. All rights reserved.  \nThe LOD Specification Part I and Part II are made available to the public without charge. In order to maintain the integrity and usefulness of these documents as a reference standard, certain restrictions apply to their use. These documents are licensed to the public under Creative Commons licenses as follows:  \nPart I of this work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License ([http://creativecommons.org/l](http://creativecommons.org/l)icenses/by-nc-nd/4 .0/).  \nPart II of this work is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License ([http://creativecommons.org/l](http://creativecommons.org/l)icenses/by-nc/4 .0/).  \nLicensing questions should be directed to [LOD@BIMForum.org](LOD@BIMForum.org).  \nSpanish Translation  \nCarlos Vera /BIMForum Ecuador  \nHéctor Santacruz /BIMForum Ecuador  \nSponsors  \nThis document was made possible by the generous support of BIMForum from these organizations:  \n American Institute of Steel Construction  \nEXECUTIVE SUMMARY  \nFor a detailed guide on the use of this Specification see User Guide below.  \nThe Level of Development (LOD) Specification is a reference tool intended to improve the quality of communication among users of Building Information Models (BIMs) about the characteristics of elements in models. The LOD Specification expands upon the LOD schema developed by AIA Contract Documents for its E201 2022 BIM Exhibit for Sharing Models with Project Participants 1 by providing definitions and illustrations of BIM elements of different building systems at different stages of their development and use in design, construction and operation.  \nBuilding Information Modeling presents information about a construction project or structure in the form of three-dimensional graphical representations of elements (e.g. , doors, beams, etc. ), which can be further associated with information about other characteristics of those elements. It is possible for the graphical representation of an element, taken alone, to suggest that greater accuracy or intention can be attributed to the element than is in fact the case. The AIA’s LOD Schema was developed to provide a more systematic way of conveying the extent of reliance that may be placed on an element. Many participants in the design and construction process felt, however, that the industry would benefit from a more detailed treatment of the AIA’s brief narrative definitions.  \nDiscussions within the BIMForum led to the creation of a multi-disciplinary task force to develop and maintain the LOD Specification. The LOD Specification is an organized collection of interpretations of the AIA’s LOD defi","cbCaipcGesWSZzAF","https://ap.wps.com/l/cbCaipcGesWSZzAF","pdf",4866982,199,"English","# Executive Summary\n## Purpose and Background\n## How LOD Improves BIM Communication\n## Organization and Referencing Structure\n## Roles, Tagging, and Evolution\n## Licensing and Use Restrictions","[{\"question\":\"What is the purpose of the LOD Specification Part I?\",\"answer\":\"It is a reference tool meant to improve quality of communication among BIM users about the characteristics of elements at different development stages.\"},{\"question\":\"How does the document relate to the AIA LOD schema?\",\"answer\":\"It expands upon the AIA LOD schema by providing additional definitions and illustrations for BIM elements across different building systems and lifecycle stages.\"},{\"question\":\"Does the specification require specific LOD levels for project phases?\",\"answer\":\"No. It does not prescribe required LOD levels for specific design and construction phases; that decision is left to each project team.\"}]","LOD Specification - Part I - educational and informational guide | PDF",1792792990,501]