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README.md

@@ -56,6 +56,8 @@ You can always find the most up-to-date [API documentation here](https://mod-con
 
 ## Data Model
 
+> **Note on Units**: All units decsribing the geometry of prefab elements are expressed in **millimeters (mm)** unless otherwise specified.
+
 ```mermaid
 erDiagram
     PrefabElement {

src/types/common/boundingBoxSchema.ts

@@ -1,12 +1,19 @@
 import { z } from "zod";
 
-const BoundingBoxSchema = z.object({
-    width: z.number().gt(0, "Width must be greater than 0"),
-    height: z.number().gt(0, "Height must be greater than 0"),
-    depth: z.number().gt(0, "Depth must be greater than 0")
+const BoundingBoxSchema = z.object({  
+  max: z.tuple([
+    z.number().positive(),  
+    z.number().positive(),  
+    z.number().positive()  
+  ]).describe("Maximum corner in millimeters and defined in the local coordianate system"),
+
 }).openapi({
-    description: "The bounding box of an element in millimeters.",
+  description: "Local bounding box aligned to element's own axes, origin at (0,0,0). Dimensions in millimeters."
 });
 
 type BoundingBox = z.infer<typeof BoundingBoxSchema>;
-export { BoundingBoxSchema, BoundingBox };
+
+export { 
+  BoundingBoxSchema,
+  BoundingBox,
+};

src/types/common/dimensionalAttributesSchema.ts

@@ -2,9 +2,18 @@ import { z } from "zod";
 import { RangeSchema } from "./rangeSchema";
 
 const DimensionalAttributesSchema = z.object({
-    width: RangeSchema,
-    height: RangeSchema,
-    length: RangeSchema
+    length: RangeSchema.describe("Primary dimension along the longest horizontal axis of the element. Used for linear elements like beams, walls, and slabs."),
+    width: RangeSchema.describe("Secondary horizontal dimension perpendicular to length. Used for planar elements like slabs, walls, and panels."),
+    height: RangeSchema.describe("Vertical dimension. Defines the elevation of elements like walls and columns."),
+    depth: RangeSchema.describe("Cross-sectional dimension of structural members like beams and columns."),
+    thickness: RangeSchema.describe("Smallest dimension of planar elements such as walls, slabs, or panels. Represents the cross-sectional depth."),
+    radius: RangeSchema.describe("Radius of circular or cylindrical elements like columns, piles, or pipes."),
+}).openapi({
+  description: 
+  "Dimensional attributes defining the physical size of prefab elements. " +
+    "All dimensions are optional and dependent on element type. " +
+    "All measurements are in millimeters (mm). " +
+    "Ranges represent manufacturing constraints.",
 });
 
 type DimensionalAttributes = z.infer<typeof DimensionalAttributesSchema>;

src/types/common/enums.ts

@@ -60,6 +60,7 @@ const BuildingSystemEnum = z
     "Plants",
     "Roofs",
     "Stairs",
+    "Structure",
   ])
   .openapi({
     description:
@@ -77,9 +78,12 @@ const ProductCategoryEnum = z
     "Insulated Concrete Panels",
     "Prefabricated Balcony",
     "Pod",
+    "Structural Beam",
+    "Structural Column",
     "Whole Building System",
     "Structural Frame",
     "Facade System",
+    "Curtain Wall",
     "Hollowcore Floor",
     "Concrete Lattice Floor",
     "Floor Cassettes",

src/types/common/productCategorySchema.ts

@@ -1,34 +1,40 @@
 import { z } from "zod";
-import { BuildingSystemEnum, ProductCategoryEnum } from "./enums";
+import { BuildingSystemEnum, ProductCategoryEnum,IfcBuildingElementEnum } from "./enums";
 
 // Temporary schema for values
 const RawProductCategorySchema = z.object({
   category: ProductCategoryEnum,
-  buildingSystem: BuildingSystemEnum
+  buildingSystem: BuildingSystemEnum,
+  ifcCompatibleElements: z
+    .array(IfcBuildingElementEnum)
+    .optional(),
 });
 
 const productCategoryValues: z.infer<typeof RawProductCategorySchema>[] = [
-  { category: "Boarding", buildingSystem: "Wall" },
-  { category: "Solid Wall Panels", buildingSystem: "Wall" },
-  { category: "Closed Wall Panels", buildingSystem: "Wall" },
-  { category: "Twinwall", buildingSystem: "Wall" },
-  { category: "Open Wall Panels", buildingSystem: "Wall" },
-  { category: "Structural Insulated Panels (SIPs)", buildingSystem: "Wall" },
-  { category: "Insulated Concrete Panels", buildingSystem: "Wall" },
-  { category: "Whole Building System", buildingSystem: "Frame" },
-  { category: "Structural Frame", buildingSystem: "Frame" },
-  { category: "Hollowcore Floor", buildingSystem: "Floors" },
-  { category: "Concrete Lattice Floor", buildingSystem: "Floors" },
-  { category: "Floor Cassettes", buildingSystem: "Floors" },
-  { category: "Solid Floor Panels", buildingSystem: "Floors" },
-  { category: "Roof Panel", buildingSystem: "Roofs" },
-  { category: "Roof Truss", buildingSystem: "Roofs" },
-  { category: "Prefabricated Balcony", buildingSystem: "Balcony" },
-  { category: "Pod", buildingSystem: "Pod" },
-  { category: "Facade System", buildingSystem: "Facade" },
-  { category: "Volumetric module", buildingSystem: "Modules" },
-  { category: "Prefabricated Plant", buildingSystem: "Plants" },
-  { category: "Prefabricated Stairs", buildingSystem: "Stairs" },
+  { category: "Boarding", buildingSystem: "Wall", ifcCompatibleElements: ["IfcWall","IfcWallStandardCase","IfcBuildingElementProxy"] },
+  { category: "Solid Wall Panels", buildingSystem: "Wall", ifcCompatibleElements: ["IfcWall","IfcWallStandardCase","IfcBuildingElementProxy"] },
+  { category: "Closed Wall Panels", buildingSystem: "Wall", ifcCompatibleElements: ["IfcWall","IfcWallStandardCase","IfcBuildingElementProxy"] },
+  { category: "Twinwall", buildingSystem: "Wall", ifcCompatibleElements: ["IfcWall","IfcWallStandardCase","IfcBuildingElementProxy"] },
+  { category: "Open Wall Panels", buildingSystem: "Wall", ifcCompatibleElements: ["IfcWall","IfcWallStandardCase","IfcBuildingElementProxy"] },
+  { category: "Structural Insulated Panels (SIPs)", buildingSystem: "Wall", ifcCompatibleElements: ["IfcWall","IfcWallStandardCase","IfcBuildingElementProxy"] },
+  { category: "Insulated Concrete Panels", buildingSystem: "Wall", ifcCompatibleElements: ["IfcWall","IfcWallStandardCase","IfcBuildingElementProxy"] },
+  { category: "Whole Building System", buildingSystem: "Frame", ifcCompatibleElements: ["IfcBuildingElementProxy","IfcWall","IfcWallStandardCase","IfcSlab","IfcRoof","IfcColumn","IfcBeam"] },
+  { category: "Structural Frame", buildingSystem: "Frame", ifcCompatibleElements: ["IfcBuildingElementProxy","IfcColumn","IfcBeam","IfcMember"] },
+  { category: "Hollowcore Floor", buildingSystem: "Floors", ifcCompatibleElements: ["IfcSlab","IfcBuildingElementProxy"] },
+  { category: "Concrete Lattice Floor", buildingSystem: "Floors", ifcCompatibleElements: ["IfcSlab","IfcBuildingElementProxy"] },
+  { category: "Floor Cassettes", buildingSystem: "Floors", ifcCompatibleElements: ["IfcSlab","IfcBuildingElementProxy"] },
+  { category: "Solid Floor Panels", buildingSystem: "Floors", ifcCompatibleElements: ["IfcSlab","IfcBuildingElementProxy"] },
+  { category: "Roof Panel", buildingSystem: "Roofs", ifcCompatibleElements: ["IfcRoof","IfcBuildingElementProxy","IfcCovering"] },
+  { category: "Roof Truss", buildingSystem: "Roofs", ifcCompatibleElements: ["IfcRoof","IfcBuildingElementProxy","IfcBeam"] },
+  { category: "Prefabricated Balcony", buildingSystem: "Balcony", ifcCompatibleElements: ["IfcBuildingElementProxy","IfcSlab"] },
+  { category: "Pod", buildingSystem: "Pod", ifcCompatibleElements: ["IfcBuildingElementProxy"] },
+  { category: "Facade System", buildingSystem: "Facade", ifcCompatibleElements: ["IfcCurtainWall","IfcBuildingElementProxy","IfcWall","IfcWallStandardCase"] },
+  { category: "Curtain Wall", buildingSystem: "Facade", ifcCompatibleElements: ["IfcCurtainWall","IfcBuildingElementProxy","IfcWall","IfcWallStandardCase"] },
+  { category: "Volumetric module", buildingSystem: "Modules", ifcCompatibleElements: ["IfcBuildingElementProxy","IfcWall","IfcWallStandardCase","IfcSlab","IfcRoof"] },
+  { category: "Prefabricated Plant", buildingSystem: "Plants", ifcCompatibleElements: ["IfcBuildingElementProxy"] },
+  { category: "Prefabricated Stairs", buildingSystem: "Stairs", ifcCompatibleElements: ["IfcStair","IfcBuildingElementProxy","IfcRamp"] },
+  { category: "Structural Beam", buildingSystem: "Structure", ifcCompatibleElements: ["IfcBeam", "IfcMember","IfcBuildingElementProxy"] },
+  { category: "Structural Column", buildingSystem: "Structure", ifcCompatibleElements: ["IfcColumn", "IfcMember","IfcBuildingElementProxy"] },
 ];
 
 const ProductCategorySchema = RawProductCategorySchema.refine(

src/types/entities/prefabElementSchema.ts

@@ -49,9 +49,9 @@ const PrefabElementSchema = z.object({
             example: "This CLT wall panel is suitable for multi-story residential buildings and meets fire resistance standards."
         }),
     boundingBox: BoundingBoxSchema
-        .describe("3D bounding dimensions of the prefab element.")
+        .describe("3D bounding dimensions of the prefab element, located at the Local Origin (0,0,0).")
         .openapi({
-            description: "3D bounding dimensions of the prefab element, defining its spatial envelope."
+            description: "3D bounding dimensions of the prefab element, located at the local origin (0,0,0)."
         }),
     images: z.array(z.string()).min(1, "At least one image is required")
         .describe("Image URLs of the element")