{"id":26223,"date":"2026-02-06T16:25:14","date_gmt":"2026-02-06T16:25:14","guid":{"rendered":"http:\/\/141.23.68.248\/wp\/?page_id=26223"},"modified":"2026-02-06T16:25:54","modified_gmt":"2026-02-06T16:25:54","slug":"4-combined-ontology","status":"publish","type":"page","link":"http:\/\/141.23.68.248\/wp\/?page_id=26223","title":{"rendered":"4. Combined Ontology"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Ontology<\/h2>\n\n\n\n<p>The ontology captures the <strong>project-level design logic<\/strong> for a competitive nuclear facility tender. It integrates six interdependent subsystems inside one shared model:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nuclear Containment Building<\/li>\n\n\n\n<li>Historical Building<\/li>\n\n\n\n<li>Green Roof System<\/li>\n\n\n\n<li>Wooden Roof Truss System<\/li>\n\n\n\n<li>Bridge<\/li>\n\n\n\n<li>Pavement System<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/2-1.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"384\" src=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/2-1-1024x384.jpeg\" alt=\"\" class=\"wp-image-26239\" srcset=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/2-1-1024x384.jpeg 1024w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/2-1-300x113.jpeg 300w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/2-1-768x288.jpeg 768w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/2-1-520x195.jpeg 520w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/2-1-740x278.jpeg 740w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/2-1.jpeg 1060w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/div>\n\n\n<p class=\"has-text-align-center\"><strong>Figure O1<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Purpose and scope<\/h3>\n\n\n\n<p><strong>Purpose<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Explain the design logic of the tender at a system-integration level<\/li>\n\n\n\n<li>Make interdisciplinary coordination clearer (who affects what, and why)<\/li>\n\n\n\n<li>Support scenario comparison using the same evaluation metrics and constraints<\/li>\n<\/ul>\n\n\n\n<p><strong>Scope<\/strong><br>The ontology focuses on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>System boundaries and relationships<\/li>\n\n\n\n<li>Global design parameters that influence multiple subsystems<\/li>\n\n\n\n<li>Shared performance metrics for evaluation<\/li>\n\n\n\n<li>Mandatory project constraints (requirements)<\/li>\n<\/ul>\n\n\n\n<p>It explicitly does <strong>not<\/strong> implement:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Operational simulations<\/li>\n\n\n\n<li>Material-level calculations<\/li>\n\n\n\n<li>Optimization algorithms<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/1.jpeg\"><img loading=\"lazy\" decoding=\"async\" width=\"916\" height=\"301\" src=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/1.jpeg\" alt=\"\" class=\"wp-image-26241\" srcset=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/1.jpeg 916w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/1-300x99.jpeg 300w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/1-768x252.jpeg 768w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/1-520x171.jpeg 520w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/1-740x243.jpeg 740w\" sizes=\"auto, (max-width: 916px) 100vw, 916px\" \/><\/a><\/figure><\/div>\n\n\n<p class=\"has-text-align-center\"><strong>Figure O2<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ontology structure<\/h3>\n\n\n\n<p>The ontology is organized around six core classes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Project<\/strong> (the overall tender context)<\/li>\n\n\n\n<li><strong>System<\/strong> (abstract class for all subsystems)<\/li>\n\n\n\n<li><strong>DesignParameter<\/strong> (inputs that control design decisions)<\/li>\n\n\n\n<li><strong>PerformanceMetric<\/strong> (outputs used to evaluate quality)<\/li>\n\n\n\n<li><strong>Requirement<\/strong> (constraints that must be satisfied)<\/li>\n\n\n\n<li><strong>DesignVariant<\/strong> (alternative configurations)<\/li>\n<\/ul>\n\n\n\n<p>Each subsystem (Bridge, Road, GreenRoof, etc.) is a <strong>subclass of System<\/strong>, with <strong>one corresponding system individual<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-206.png\"><img loading=\"lazy\" decoding=\"async\" width=\"725\" height=\"484\" src=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-206.png\" alt=\"\" class=\"wp-image-26242\" style=\"width:700px;height:auto\" srcset=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-206.png 725w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-206-300x200.png 300w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-206-390x260.png 390w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-206-520x347.png 520w\" sizes=\"auto, (max-width: 725px) 100vw, 725px\" \/><\/a><\/figure><\/div>\n\n\n<p class=\"has-text-align-center\"><strong>Figure O3 <\/strong><br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Project integration<\/h3>\n\n\n\n<p>A single project instance, centralizes the decision logic. It connects to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>All subsystem instances<\/strong> (via <code>hasSubsystem<\/code>)<\/li>\n\n\n\n<li><strong>Global performance metrics<\/strong> (via <code>hasOutput<\/code>)<\/li>\n\n\n\n<li><strong>Mandatory requirements<\/strong> (via <code>mustSatisfy<\/code>)<\/li>\n\n\n\n<li><strong>Design variants<\/strong> (via <code>hasDesignVariant<\/code>)<\/li>\n<\/ul>\n\n\n\n<p>This setup keeps all reasoning anchored at the project level, so every design alternative is evaluated consistently.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Global design parameters<\/h3>\n\n\n\n<p>Three global parameters drive the main cross-system trade-offs:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Reactor Radius<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Controls containment size and structural volume<\/li>\n\n\n\n<li>Strongly affects embodied CO\u2082 and total cost<\/li>\n\n\n\n<li>Drives economic return through usable area\/income logic<\/li>\n<\/ul>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>Bridge Position<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Determines the river-crossing alignment<\/li>\n\n\n\n<li>Changes bridge length and approach road layout<\/li>\n\n\n\n<li>Creates a bridge vs. road trade-off in cost and CO\u2082<\/li>\n<\/ul>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>Green Roof Coverage<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Influences roof loads and truss demand<\/li>\n\n\n\n<li>Can trigger wall strengthening for the historical building<\/li>\n\n\n\n<li>Affects embodied CO\u2082 through added structural work and materials<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-207.png\"><img loading=\"lazy\" decoding=\"async\" width=\"576\" height=\"843\" src=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-207.png\" alt=\"\" class=\"wp-image-26246\" style=\"width:561px;height:auto\" srcset=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-207.png 576w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-207-205x300.png 205w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-207-520x761.png 520w\" sizes=\"auto, (max-width: 576px) 100vw, 576px\" \/><\/a><\/figure><\/div>\n\n\n<p class=\"has-text-align-center\"><strong>Figure O5<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Performance metrics <\/h3>\n\n\n\n<p>Two global performance metrics are used to compare alternatives:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Total CO\u2082 Emissions (A1\u2013A3)<\/strong>: embodied carbon from material production across the integrated project<\/li>\n\n\n\n<li><strong>Return on Investment (ROI)<\/strong>: rental income over 15 years divided by total construction costs<\/li>\n<\/ul>\n\n\n\n<p>Because these metrics are attached at the project level, each variant is compared on the <strong>same basis<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-208.png\"><img loading=\"lazy\" decoding=\"async\" width=\"581\" height=\"843\" src=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-208.png\" alt=\"\" class=\"wp-image-26247\" style=\"width:574px;height:auto\" srcset=\"http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-208.png 581w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-208-207x300.png 207w, http:\/\/141.23.68.248\/wp\/wp-content\/uploads\/2026\/02\/image-208-520x754.png 520w\" sizes=\"auto, (max-width: 581px) 100vw, 581px\" \/><\/a><\/figure><\/div>\n\n\n<p class=\"has-text-align-center\"><strong>Figure O6<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Requirements<\/h3>\n\n\n\n<p>The ontology explicitly models the key project constraints:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Maximum total embodied CO\u2082: <strong>2,070,000 kg<\/strong><\/li>\n\n\n\n<li>Minimum green roof coverage: <strong>10%<\/strong><\/li>\n\n\n\n<li>Mandatory river crossing via a bridge<\/li>\n\n\n\n<li>Functional connectivity between containment and historical building<\/li>\n\n\n\n<li>Reuse and renovation of the historical building<\/li>\n\n\n\n<li>Containment geometric constraints (fixed height + minimum radius range)<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Dependencies<\/h3>\n\n\n\n<p>The ontology captures key conceptual dependencies to keep reasoning transparent, for example:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Higher green roof load \u2192 higher truss demand \u2192 possible wall strengthening<\/li>\n\n\n\n<li>Larger containment size \u2192 increased logistics demands \u2192 affects road class + bridge load capacity<\/li>\n\n\n\n<li>Bridge and road placement depend on the spatial logic between containment and the historical building<\/li>\n<\/ul>\n\n\n\n<p>This is not \u201ccalculation,\u201d it\u2019s the <strong>map of cause-and-effect relationships<\/strong> that your Dynamo workflows and simulations can then quantify.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Design variants <\/h3>\n\n\n\n<p><strong>Without design variants,<\/strong> you only have one frozen design.<\/p>\n\n\n\n<p><strong>With design variants,<\/strong> you can compare alternatives transparently.<\/p>\n\n\n\n<p>In this ontology, each <strong>DesignVariant<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Uses the same systems<\/li>\n\n\n\n<li>Must satisfy the same requirements<\/li>\n\n\n\n<li>Is evaluated using the same performance metrics<\/li>\n\n\n\n<li>But differs in one or more design parameter values<\/li>\n<\/ul>\n\n\n\n<p>This makes \u201cVariant 1 vs Variant 2\u201d explicit and auditable, even if the numbers are generated in Dynamo.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ontology The ontology captures the project-level design logic for a competitive nuclear facility tender. It integrates six interdependent subsystems inside one shared model: Figure O1 Purpose and scope Purpose ScopeThe ontology focuses on: It explicitly<a class=\"read-more\" href=\"http:\/\/141.23.68.248\/wp\/?page_id=26223\">Continue reading<\/a><\/p>\n","protected":false},"author":301,"featured_media":0,"parent":24068,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-26223","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/pages\/26223","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/users\/301"}],"replies":[{"embeddable":true,"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=26223"}],"version-history":[{"count":1,"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/pages\/26223\/revisions"}],"predecessor-version":[{"id":26249,"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/pages\/26223\/revisions\/26249"}],"up":[{"embeddable":true,"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/pages\/24068"}],"wp:attachment":[{"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=26223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}