{"id":7253,"date":"2026-02-17T13:04:15","date_gmt":"2026-02-17T12:04:15","guid":{"rendered":"https:\/\/openbim-knowledgebase.org\/docs\/chapter-4-5-collaboration-in-the-project\/"},"modified":"2026-02-20T16:57:14","modified_gmt":"2026-02-20T15:57:14","slug":"chapter-4-5-collaboration-in-the-project","status":"publish","type":"docs","link":"https:\/\/openbim-knowledgebase.org\/en\/docs\/standard-aia-2026\/chapter-4-project-organization\/chapter-4-5-collaboration-in-the-project\/","title":{"rendered":"Chapter 4.5 &#8211; Collaboration in the project"},"content":{"rendered":"<style>.kb-table-of-content-nav.kb-table-of-content-id1945_865165-20 .kb-table-of-content-wrap{background-color:var(--global-palette7, #EDF2F7);}.kb-table-of-content-nav.kb-table-of-content-id1945_865165-20 .kb-table-of-contents-title-wrap{padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top:0px solid transparent;border-right:0px solid transparent;border-bottom:0px solid transparent;border-left:0px solid transparent;}.kb-table-of-content-nav.kb-table-of-content-id1945_865165-20 .kb-table-of-contents-title{font-size:var(--global-kb-font-size-md, 1.25rem);font-family:var( --global-heading-font-family, inherit );font-weight:bold;font-style:normal;}.kb-table-of-content-nav.kb-table-of-content-id1945_865165-20 .kb-table-of-content-wrap .kb-table-of-content-list{font-weight:regular;font-style:normal;margin-top:var(--global-kb-spacing-sm, 1.5rem);margin-right:0px;margin-bottom:0px;margin-left:0px;}.kb-table-of-content-nav.kb-table-of-content-id1945_865165-20 .kb-toggle-icon-style-basiccircle .kb-table-of-contents-icon-trigger:after, .kb-table-of-content-nav.kb-table-of-content-id1945_865165-20 .kb-toggle-icon-style-basiccircle .kb-table-of-contents-icon-trigger:before, .kb-table-of-content-nav.kb-table-of-content-id1945_865165-20 .kb-toggle-icon-style-arrowcircle .kb-table-of-contents-icon-trigger:after, .kb-table-of-content-nav.kb-table-of-content-id1945_865165-20 .kb-toggle-icon-style-arrowcircle .kb-table-of-contents-icon-trigger:before, .kb-table-of-content-nav.kb-table-of-content-id1945_865165-20 .kb-toggle-icon-style-xclosecircle .kb-table-of-contents-icon-trigger:after, .kb-table-of-content-nav.kb-table-of-content-id1945_865165-20 .kb-toggle-icon-style-xclosecircle .kb-table-of-contents-icon-trigger:before{background-color:var(--global-palette7, #EDF2F7);}@media all and (max-width: 1024px){.kb-table-of-content-nav.kb-table-of-content-id1945_865165-20 .kb-table-of-contents-title-wrap{border-top:0px solid transparent;border-right:0px solid transparent;border-bottom:0px solid transparent;border-left:0px solid transparent;}}@media all and (max-width: 767px){.kb-table-of-content-nav.kb-table-of-content-id1945_865165-20 .kb-table-of-contents-title-wrap{border-top:0px solid transparent;border-right:0px solid transparent;border-bottom:0px solid transparent;border-left:0px solid transparent;}}<\/style>\n<h4 class=\"wp-block-heading\" id=\"ZW1\">Instructions<\/h4>\n\n<div class=\"wp-block-group has-theme-palette-2-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">The chapters on &#8220;Collaboration in the project&#8221; define how model-based collaboration is to be carried out. Starting from the basis of the technical models and how these can be transferred, the various forms of coordination between the project participants are defined here and ultimately determined by the core topic of openBIM project implementation &#8211; BIM quality assurance. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Communication is the linchpin of every project (regardless of the method). Digital project implementation in the openBIM method uses BCF comments to communicate with each other on a model-related basis. However, communication should be taken further: every specialist model transports information and this is communicated by making it available on the collaboration platform. Clean and content-related work in the specialist model is therefore also part of communication.   <\/p>\n<\/div><\/div>\n\n<h4 class=\"wp-block-heading\" id=\"ZW2\">Standard AIA<\/h4>\n\n<p class=\"wp-block-paragraph\">The following chapter describes the integral, model-based interaction of all disciplines and defines the requirements for coordinated cooperation.<\/p>\n\n<p class=\"wp-block-paragraph\">The cooperation and responsibility of the project participants is based on:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>the interfaces defined in chapter 3.7.<\/li>\n\n\n\n<li>the collaboration platform defined for the project in chapter 3.5.<\/li>\n\n\n\n<li>responsibility and authorship for the respective specialist models (see sections 3.2 and 4.5.1).<\/li>\n\n\n\n<li>the defined coordination cases (see section 4.5.3) for coordinating the specialist models.<\/li>\n\n\n\n<li>the specifications for BIM quality assurance defined in section 4.5.4.<\/li>\n\n\n\n<li>the exchange of coordination and correction requests between project participants using BCF (model-based communication, see section 4.5.5).<\/li>\n\n\n\n<li>on the use cases defined in chapter 5.<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\" id=\"ZW3\">Chapter 4.5.1 &#8211; Specialist models<\/h3>\n\n<h4 class=\"wp-block-heading\" id=\"ZW4\">Instructions<\/h4>\n\n<div class=\"wp-block-group has-theme-palette-2-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">Specialist models must be created for each responsible trade\/discipline in qualified authoring software. They contain all model elements relevant to planning\/execution and are handed over to the client in the final documentation as as-built technical models, e.g. for operational management. They are exported from the authoring software as an IFC technical model (derived, usually using a translator provided\/integrated for this purpose).  <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Each specialist model has its own LOI (in accordance with the LOI definition), is modeled in accordance with the modeling specifications and LOG definition and serves as the basis for all use cases. Plans and all evaluations (e.g. quantities and masses) are derived from the business model. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The chapter on specialist models is used to define their content composition. A technical model can contain not only trade\/discipline-specific content, but also information from other project participants (e.g. the architectural technical model can contain information on fire protection, building physics, etc.). If the specialist model structure specified in an AIA is adapted, these adaptations must be taken into account and updated in the specifications for the checking routine (specialist models to be checked), in the checking routine in the checking software, in the LOG definition and in the LOI definition (existing model components in each case). This represents additional work on the part of the client\/other contractors and must be taken into account and accounted for by the trade that requested the change.   <\/p>\n<\/div><\/div>\n<div class=\"rcp_restricted rcp_paid_only\"><p>Dieser Inhalt ist nur f\u00fcr Abonnenten zug\u00e4nglich. <a href=\"https:\/\/openbim-knowledgebase.org\/registrieren\/\">Hier<\/a> gehts zur Registrierung.<\/p>\n<\/div>\n\n<div class=\"wp-block-group has-theme-palette-7-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">Publication from Krischmann, T., Malzer, W.: <em>buildingSMART Austria Standard-AIA<\/em>. Edition 2026. <\/p>\n\n\n<div class=\"rcp_restricted rcp_paid_only\"><p>Download der Standard-AIA nur f\u00fcr Mitglieder<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Status: 17.02.2026<\/p>\n<\/div><\/div>\n","protected":false},"featured_media":0,"parent":7265,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","_is_vendor_doc":"0","footnotes":""},"doc_tag":[],"class_list":["post-7253","docs","type-docs","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"Instructions The chapters on &quot;Collaboration in the project&quot; define how model-based collaboration is to be carried out. 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