{"id":434255,"date":"2024-10-20T07:43:08","date_gmt":"2024-10-20T07:43:08","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-17549-22023\/"},"modified":"2024-10-26T14:38:52","modified_gmt":"2024-10-26T14:38:52","slug":"bs-en-17549-22023","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-17549-22023\/","title":{"rendered":"BS EN 17549-2:2023"},"content":{"rendered":"
The digital transformation of the construction industry includes also the digital transformation of the supply chaine of construction products. With EN ISO 16739-1 exists an open language to design, transfer and maintain construction models. The construction models (e.g. of a building) contain a digital twin of real-life products. The data of these products should be transported in a digital format on the way from the factory to the building owner. This product data should be expressed also in an easy and open way. The creators of product data files should be able to do this manually or automatically, as they like it. The users of product data should be able to use it to: \u2022 Express their requirements related to products \u2022 Describe configurable products \u2022 Import product data easily in the BIM models at any stage of the project (design, construction, operation) \u2022 Export product data easily from the BIM models at any stage of the project (design, construction, operation) These scenarios fit in the business models of manufacturers, planners, construction companies and facility managers. The working group 4 of CEN-TC442 has published proposals for creating new work items in the sector of CEN regarding the storage and the transport of product data in the sector of building information modelling (BIM): EN ISO 16739-1:2018: Industry Foundation Classes (IFC) for data sharing in the construction and facility management industries- Part 1: Data schema EN ISO 12006-3: Building construction \u2013 Organization of information about construction works \u2013 Part 3: Framework for object-oriented information prEN ISO 23386: Building information modelling and other digital processes used in Construction \u2013 Methodology to describe, author and maintain properties in interconnected dictionaries prEN ISO 23387: Data templates for construction works entities, Part 1: Objects, collections, and relationships defining the general structure of data templates This standard defines a format to negotiate product data templates, express requirements and describe configurable products and therefore fills the missing link between the product data sources (e.g. catalogs) from the manufacturers and the BIM models of the designers, builders, and owners.<\/p>\n
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2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
3<\/td>\n | 64_e_tp <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | 3.2 Abbreviated terms 4 Fundamental concepts and assumptions 4.1 General <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | 4.2 Units 4.2.1 General 4.2.2 \u201cIfcSIUnit definition\u201d concept 4.2.3 \u201cIfcConversionBasedUnitWithOffset definition\u201d concept <\/td>\n<\/tr>\n | ||||||
21<\/td>\n | 4.2.4 \u201cUnitsInContext prohibition\u201d concept 4.2.5 \u201cUnit explicit definition\u201d concept <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | 4.2.6 \u201cIfcDerivedUnit definition\u201d concept 4.3 Data dictionaries 4.3.1 General <\/td>\n<\/tr>\n | ||||||
23<\/td>\n | 4.3.2 \u201cIfcLibraryReference identification\u201d concept 4.3.3 \u201cIfcLibraryReference attributes\u201d concept <\/td>\n<\/tr>\n | ||||||
24<\/td>\n | 4.4 Properties 4.4.1 General <\/td>\n<\/tr>\n | ||||||
25<\/td>\n | 4.4.2 \u201cIfcSimpleProperty definition\u201d concept 4.4.3 \u201cIfcSimpleProperty unique definition\u201d concept <\/td>\n<\/tr>\n | ||||||
26<\/td>\n | 4.4.4 \u201cIfcSimpleProperty in property set\u201d concept 4.4.5 \u201cIfcProperty single, table, reference, or complex\u201d concept 4.4.6 \u201cIfcPropertySingleValue attributes\u201d concept <\/td>\n<\/tr>\n | ||||||
27<\/td>\n | 4.4.7 \u201cIfcPropertyTableValue attributes\u201d concept <\/td>\n<\/tr>\n | ||||||
28<\/td>\n | 4.5 Dynamic properties 4.5.1 General 4.5.2 \u201cIfcPropertyReferenceValue usage\u201d concept 4.5.3 \u201cIfcProperty dependencies\u201d concept <\/td>\n<\/tr>\n | ||||||
31<\/td>\n | 4.6 Sets of properties 4.6.1 General <\/td>\n<\/tr>\n | ||||||
32<\/td>\n | 4.6.2 \u201cIfcPropertySet definition\u201d concept 4.6.3 \u201cIfcPropertySet unique definition\u201d concept <\/td>\n<\/tr>\n | ||||||
33<\/td>\n | 4.6.4 \u201cIfcPropertySet allowed elements\u201d concept 4.6.5 \u201cIfcPropertySet attributes\u201d concept <\/td>\n<\/tr>\n | ||||||
34<\/td>\n | 4.7 Objects 4.7.1 General 4.7.2 \u201cIfcBuildingElementProxy definition\u201d concept 4.7.3 \u201cIfcBuildingElementProxy unique definition\u201d concept <\/td>\n<\/tr>\n | ||||||
36<\/td>\n | 4.7.4 \u201cIfcBuildingElementProxy as property sets\u201d concept 4.7.5 \u201cIfcBuildingElementProxy as a system\u201d concept <\/td>\n<\/tr>\n | ||||||
37<\/td>\n | 4.7.6 \u201cIfcBuildingElementProxy attributes\u201d concept <\/td>\n<\/tr>\n | ||||||
38<\/td>\n | 4.8 Object types 4.8.1 General 4.8.2 \u201cIfcBuildingElementProxyType definition\u201d concept <\/td>\n<\/tr>\n | ||||||
39<\/td>\n | 4.8.3 \u201cIfcBuildingElementProxyType unique definition\u201d concept <\/td>\n<\/tr>\n | ||||||
40<\/td>\n | 4.8.4 \u201cIfcBuildingElementProxyType as property sets\u201d concept 4.8.5 \u201cIfcBuildingElementProxyType as a system\u201d concept <\/td>\n<\/tr>\n | ||||||
41<\/td>\n | 4.8.6 \u201cApplicableOccurrence value\u201d concept <\/td>\n<\/tr>\n | ||||||
42<\/td>\n | 4.8.7 \u201cIfcBuildingElementProxyType attributes\u201d concept 4.9 Semantic relationships 4.9.1 General <\/td>\n<\/tr>\n | ||||||
44<\/td>\n | 4.9.2 \u201cIfcGroup definition\u201d concept 4.9.3 \u201cIfcGroup unique definition\u201d concept <\/td>\n<\/tr>\n | ||||||
45<\/td>\n | 4.9.4 \u201cIfcGroup as semantic relationship\u201d concept <\/td>\n<\/tr>\n | ||||||
47<\/td>\n | 4.10 Constraints 4.10.1 General <\/td>\n<\/tr>\n | ||||||
48<\/td>\n | 4.10.2 \u201cConstraintGrade value\u201d concept <\/td>\n<\/tr>\n | ||||||
49<\/td>\n | 4.10.3 \u201cIfcConstraint target\u201d concept <\/td>\n<\/tr>\n | ||||||
51<\/td>\n | 4.10.4 \u201cObjectiveQualifier value\u201d concept <\/td>\n<\/tr>\n | ||||||
52<\/td>\n | 4.10.5 \u201cDataValue value\u201d concept 4.10.6 \u201cIfcConstraint definition\u201d concept <\/td>\n<\/tr>\n | ||||||
53<\/td>\n | 4.10.7 \u201cIfcObjective attributes\u201d concept <\/td>\n<\/tr>\n | ||||||
55<\/td>\n | 4.10.8 \u201cIfcMetric attributes\u201d concept <\/td>\n<\/tr>\n | ||||||
56<\/td>\n | 4.11 Context composition 4.11.1 General 4.11.2 \u201cIfcProject allowed decompositions\u201d concept <\/td>\n<\/tr>\n | ||||||
57<\/td>\n | 4.11.3 \u201cIfcBuilding allowed content\u201d concept 4.11.4 \u201cIfcProject allowed declarations\u201d concept <\/td>\n<\/tr>\n | ||||||
58<\/td>\n | 4.11.5 \u201cIfcProjectLibrary allowed declarations\u201d concept 4.12 Root 4.12.1 \u201cIfcRoot attributes\u201d concept <\/td>\n<\/tr>\n | ||||||
59<\/td>\n | 5 Core data schemas 5.1 General 5.2 IfcKernel 5.2.1 General 5.2.2 Types 5.2.2.1 IfcDefinitionSelect <\/td>\n<\/tr>\n | ||||||
60<\/td>\n | 5.2.2.2 IfcProductSelect 5.2.2.3 IfcPropertySetDefinitionSelect 5.2.3 Entities 5.2.3.1 IfcContext <\/td>\n<\/tr>\n | ||||||
63<\/td>\n | 5.2.3.2 IfcGroup <\/td>\n<\/tr>\n | ||||||
65<\/td>\n | 5.2.3.3 IfcObject <\/td>\n<\/tr>\n | ||||||
68<\/td>\n | 5.2.3.4 IfcObjectDefinition <\/td>\n<\/tr>\n | ||||||
70<\/td>\n | 5.2.3.5 IfcProduct <\/td>\n<\/tr>\n | ||||||
72<\/td>\n | 5.2.3.6 IfcProject <\/td>\n<\/tr>\n | ||||||
74<\/td>\n | 5.2.3.7 IfcProjectLibrary <\/td>\n<\/tr>\n | ||||||
77<\/td>\n | 5.2.3.8 IfcPropertyDefinition <\/td>\n<\/tr>\n | ||||||
78<\/td>\n | 5.2.3.9 IfcPropertySet <\/td>\n<\/tr>\n | ||||||
80<\/td>\n | 5.2.3.10 IfcPropertySetDefinition <\/td>\n<\/tr>\n | ||||||
82<\/td>\n | 5.2.3.11 IfcRelAggregates <\/td>\n<\/tr>\n | ||||||
83<\/td>\n | 5.2.3.12 IfcRelAssigns <\/td>\n<\/tr>\n | ||||||
85<\/td>\n | 5.2.3.13 IfcRelAssignsToGroup <\/td>\n<\/tr>\n | ||||||
86<\/td>\n | 5.2.3.14 IfcRelAssignsToProduct <\/td>\n<\/tr>\n | ||||||
88<\/td>\n | 5.2.3.15 IfcRelAssociates <\/td>\n<\/tr>\n | ||||||
89<\/td>\n | 5.2.3.16 IfcRelAssociatesLibrary <\/td>\n<\/tr>\n | ||||||
90<\/td>\n | 5.2.3.17 IfcRelationship <\/td>\n<\/tr>\n | ||||||
91<\/td>\n | 5.2.3.18 IfcRelConnects <\/td>\n<\/tr>\n | ||||||
92<\/td>\n | 5.2.3.19 IfcRelDeclares <\/td>\n<\/tr>\n | ||||||
94<\/td>\n | 5.2.3.20 IfcRelDecomposes <\/td>\n<\/tr>\n | ||||||
95<\/td>\n | 5.2.3.21 IfcRelDefines <\/td>\n<\/tr>\n | ||||||
96<\/td>\n | 5.2.3.22 IfcRelDefinesByProperties <\/td>\n<\/tr>\n | ||||||
98<\/td>\n | 5.2.3.23 IfcRelDefinesByType <\/td>\n<\/tr>\n | ||||||
99<\/td>\n | 5.2.3.24 IfcRelNests <\/td>\n<\/tr>\n | ||||||
101<\/td>\n | 5.2.3.25 IfcRoot <\/td>\n<\/tr>\n | ||||||
102<\/td>\n | 5.2.3.26 IfcTypeObject <\/td>\n<\/tr>\n | ||||||
105<\/td>\n | 5.2.3.27 IfcTypeProduct <\/td>\n<\/tr>\n | ||||||
107<\/td>\n | 5.2.4 Functions 5.2.4.1 IfcUniqueDefinitionNames 5.2.4.2 Semantic definitions at the function <\/td>\n<\/tr>\n | ||||||
108<\/td>\n | 5.2.4.3 IfcUniquePropertyName 5.2.4.4 IfcUniquePropertySetNames 5.2.5 Rules \u2013 IfcSingleProjectInstance \u2013 Semantic definitions at the global rule 5.3 IfcControlExtension \u2013 Entities \u2013 IfcRelAssociatesConstraint 5.3.1 Semantic definitions at the entity 5.3.2 Inherited definitions from supertypes <\/td>\n<\/tr>\n | ||||||
109<\/td>\n | 5.3.3 Definitions applying to CODview2 <\/td>\n<\/tr>\n | ||||||
110<\/td>\n | 5.4 IfcProductExtension 5.4.1 Entities 5.4.1.1 IfcBuilding <\/td>\n<\/tr>\n | ||||||
112<\/td>\n | 5.4.1.2 IfcBuildingElement <\/td>\n<\/tr>\n | ||||||
115<\/td>\n | 5.4.1.3 IfcBuildingElementType <\/td>\n<\/tr>\n | ||||||
117<\/td>\n | 5.4.1.4 IfcElement <\/td>\n<\/tr>\n | ||||||
120<\/td>\n | 5.4.1.5 IfcElementType <\/td>\n<\/tr>\n | ||||||
122<\/td>\n | 5.4.1.6 IfcRelContainedInSpatialStructure <\/td>\n<\/tr>\n | ||||||
124<\/td>\n | 5.4.1.7 IfcSpatialElement <\/td>\n<\/tr>\n | ||||||
126<\/td>\n | 5.4.1.8 IfcSpatialStructureElement <\/td>\n<\/tr>\n | ||||||
128<\/td>\n | 6 Shared element data schemas 6.1 General <\/td>\n<\/tr>\n | ||||||
129<\/td>\n | 6.2 IfcSharedBldgElements 6.2.1 Types 6.2.1.1 IfcBuildingElementProxyTypeEnum 6.2.2 Entities 6.2.2.1 IfcBuildingElementProxy <\/td>\n<\/tr>\n | ||||||
132<\/td>\n | 6.2.2.2 IfcBuildingElementProxyType <\/td>\n<\/tr>\n | ||||||
136<\/td>\n | 7 Domain specific data schemas 8 Resource definition data schemas 8.1 General 8.2 IfcActorResource 8.2.1 Types 8.2.1.1 IfcActorSelect 8.2.2 Entities 8.2.2.1 IfcOrganization <\/td>\n<\/tr>\n | ||||||
137<\/td>\n | 8.2.2.2 IfcPerson <\/td>\n<\/tr>\n | ||||||
139<\/td>\n | 8.2.2.3 IfcPersonAndOrganization <\/td>\n<\/tr>\n | ||||||
140<\/td>\n | 8.3 IfcConstraintResource 8.3.1 Types 8.3.1.1 IfcBenchmarkEnum 8.3.1.2 IfcConstraintEnum 8.3.1.3 IfcLogicalOperatorEnum <\/td>\n<\/tr>\n | ||||||
141<\/td>\n | 8.3.1.4 IfcObjectiveEnum 8.3.1.5 IfcMetricValueSelect 8.3.2 Entities 8.3.2.1 IfcConstraint <\/td>\n<\/tr>\n | ||||||
143<\/td>\n | 8.3.2.2 IfcMetric <\/td>\n<\/tr>\n | ||||||
145<\/td>\n | 8.3.2.3 IfcObjective <\/td>\n<\/tr>\n | ||||||
147<\/td>\n | 8.3.2.4 IfcReference <\/td>\n<\/tr>\n | ||||||
148<\/td>\n | 8.4 IfcCostResource 8.4.1 General 8.4.2 Types 8.4.2.1 IfcArithmeticOperatorEnum 8.4.2.2 IfcAppliedValueSelect <\/td>\n<\/tr>\n | ||||||
149<\/td>\n | 8.4.3 Entities 8.4.3.1 IfcAppliedValue <\/td>\n<\/tr>\n | ||||||
150<\/td>\n | 8.5 IfcDateTimeResource 8.5.1 Types 8.5.1.1 IfcDateTime 8.6 IfcExternalReferenceResource 8.6.1 Schema definition 8.6.1.1 Libraries <\/td>\n<\/tr>\n | ||||||
151<\/td>\n | 8.6.2 Types 8.6.2.1 IfcLanguageId 8.6.2.2 IfcURIReference 8.6.2.3 IfcLibrarySelect 8.6.2.4 IfcResourceObjectSelect 8.6.3 Entities 8.6.3.1 IfcExternalInformation 8.6.3.2 IfcExternalReference <\/td>\n<\/tr>\n | ||||||
152<\/td>\n | 8.6.3.3 IfcExternalReferenceRelationship 8.6.3.4 IfcLibraryInformation <\/td>\n<\/tr>\n | ||||||
153<\/td>\n | 8.6.3.5 IfcLibraryReference <\/td>\n<\/tr>\n | ||||||
155<\/td>\n | 8.6.3.6 IfcResourceLevelRelationship 8.7 IfcMeasureResource 8.7.1 Types 8.7.1.1 IfcBoolean 8.7.1.2 IfcIdentifier <\/td>\n<\/tr>\n | ||||||
156<\/td>\n | 8.7.1.3 IfcInteger 8.7.1.4 IfcLabel 8.7.1.5 IfcReal 8.7.1.6 IfcText 8.7.1.7 IfcDerivedUnitEnum 8.7.1.8 IfcSIPrefix 8.7.1.9 IfcSIUnitName <\/td>\n<\/tr>\n | ||||||
157<\/td>\n | 8.7.1.10 IfcUnitEnum 8.7.1.11 IfcSimpleValue <\/td>\n<\/tr>\n | ||||||
158<\/td>\n | 8.7.1.12 IfcUnit 8.7.1.13 IfcValue 8.7.2 Entities 8.7.2.1 IfcConversionBasedUnit <\/td>\n<\/tr>\n | ||||||
159<\/td>\n | 8.7.2.2 IfcConversionBasedUnitWithOffset <\/td>\n<\/tr>\n | ||||||
160<\/td>\n | 8.7.2.3 IfcDerivedUnit 8.7.2.4 IfcDerivedUnitElement <\/td>\n<\/tr>\n | ||||||
161<\/td>\n | 8.7.2.5 IfcDimensionalExponents <\/td>\n<\/tr>\n | ||||||
162<\/td>\n | 8.7.2.6 IfcMeasureWithUnit <\/td>\n<\/tr>\n | ||||||
163<\/td>\n | 8.7.2.7 IfcMonetaryUnit 8.7.2.8 IfcNamedUnit <\/td>\n<\/tr>\n | ||||||
164<\/td>\n | 8.7.2.9 IfcSIUnit <\/td>\n<\/tr>\n | ||||||
165<\/td>\n | 8.7.3 Functions 8.7.3.1 IfcCorrectDimensions 8.8 IfcPropertyResource 8.8.1 Schema definition <\/td>\n<\/tr>\n | ||||||
166<\/td>\n | 8.8.2 Types 8.8.2.1 IfcCurveInterpolationEnum 8.8.2.2 IfcObjectReferenceSelect 8.8.3 Entities 8.8.3.1 IfcComplexProperty <\/td>\n<\/tr>\n | ||||||
168<\/td>\n | 8.8.3.2 IfcProperty <\/td>\n<\/tr>\n | ||||||
169<\/td>\n | 8.8.3.3 IfcPropertyAbstraction <\/td>\n<\/tr>\n | ||||||
170<\/td>\n | 8.8.3.4 IfcPropertyDependencyRelationship <\/td>\n<\/tr>\n | ||||||
171<\/td>\n | 8.8.3.5 IfcPropertyReferenceValue <\/td>\n<\/tr>\n | ||||||
173<\/td>\n | 8.8.3.6 IfcPropertySingleValue <\/td>\n<\/tr>\n | ||||||
175<\/td>\n | 8.8.3.7 IfcPropertyTableValue <\/td>\n<\/tr>\n | ||||||
177<\/td>\n | 8.8.3.8 IfcSimpleProperty <\/td>\n<\/tr>\n | ||||||
179<\/td>\n | 8.9 IfcUtilityResource 8.9.1 Schema definition 8.9.2 Types 8.9.2.1 IfcGloballyUniqueId 8.9.3 Entities 8.9.3.1 IfcTable <\/td>\n<\/tr>\n | ||||||
180<\/td>\n | 8.9.3.2 IfcTableColumn <\/td>\n<\/tr>\n | ||||||
182<\/td>\n | 8.9.3.3 IfcTableRow <\/td>\n<\/tr>\n | ||||||
183<\/td>\n | Annex A (normative)Computer interpretable listings \u2013 CODview2 long form schema <\/td>\n<\/tr>\n | ||||||
184<\/td>\n | Annex B (informative)Examples B.1 Preliminary examples B.1.1 Dimensions and units B.1.1.1 General B.1.1.2 Computer files B.1.1.3 Definition of base units <\/td>\n<\/tr>\n | ||||||
185<\/td>\n | B.1.1.4 Conversion mechanism for values and derived units <\/td>\n<\/tr>\n | ||||||
186<\/td>\n | B.1.1.5 Units for null values B.1.2 Data definition and data dictionaries: Properties and construction objects B.1.2.1 General <\/td>\n<\/tr>\n | ||||||
187<\/td>\n | B.1.2.2 Computer files B.1.2.3 Property definition B.1.2.4 Object definition <\/td>\n<\/tr>\n | ||||||
188<\/td>\n | B.1.2.5 Data dictionary reference B.1.3 Dependencies between properties: IfcAppliedValue B.1.3.1 General <\/td>\n<\/tr>\n | ||||||
189<\/td>\n | B.1.3.2 Computer files B.1.3.3 Arithmetic formula <\/td>\n<\/tr>\n | ||||||
190<\/td>\n | B.1.4 Dependencies between properties: JavaScript B.1.4.1 General <\/td>\n<\/tr>\n | ||||||
191<\/td>\n | B.1.4.2 Computer files B.1.4.3 JavaScript <\/td>\n<\/tr>\n | ||||||
192<\/td>\n | B.1.5 Constraints on values: IfcConstraint B.1.5.1 General <\/td>\n<\/tr>\n | ||||||
193<\/td>\n | B.1.5.2 Computer files <\/td>\n<\/tr>\n | ||||||
194<\/td>\n | B.1.5.3 Constraints based on expressions <\/td>\n<\/tr>\n | ||||||
195<\/td>\n | B.1.5.4 Constraints based on tables of values <\/td>\n<\/tr>\n | ||||||
197<\/td>\n | B.1.6 Semantic relationships: IfcGroup B.1.6.1 General <\/td>\n<\/tr>\n | ||||||
198<\/td>\n | B.1.6.2 Computer files B.1.6.3 Description of semantic relationships using IfcGroup <\/td>\n<\/tr>\n | ||||||
199<\/td>\n | B.2 Use case examples B.2.1 Using requirements B.2.1.1 General B.2.1.2 Computer files B.2.1.3 Expression of requirements <\/td>\n<\/tr>\n | ||||||
200<\/td>\n | B.2.1.4 Conflict resolution <\/td>\n<\/tr>\n | ||||||
201<\/td>\n | B.2.2 Check of the consistency between the objects included in a project and the requirements defined in a previous phase B.2.2.1 General B.2.2.2 Computer files B.2.2.3 Details <\/td>\n<\/tr>\n | ||||||
202<\/td>\n | B.2.3 Semantic, concurrent, and iterative definition of an object during design phases B.2.3.1 General B.2.3.2 Computer files B.2.3.3 Description of the different steps <\/td>\n<\/tr>\n | ||||||
204<\/td>\n | B.2.4 Product catalogue B.2.4.1 General <\/td>\n<\/tr>\n | ||||||
206<\/td>\n | B.2.4.2 Computer files B.2.4.3 Use of constraints <\/td>\n<\/tr>\n | ||||||
208<\/td>\n | B.2.4.4 Dynamic properties with JavaScript <\/td>\n<\/tr>\n | ||||||
209<\/td>\n | B.2.5 Search in a product catalogue B.2.5.1 General B.2.5.2 Computer files B.2.5.3 Scenario <\/td>\n<\/tr>\n | ||||||
210<\/td>\n | B.2.6 Bills of quantities (pre-design programs, technical specifications, offers) B.2.6.1 General B.2.6.2 Computer files B.2.6.3 Details <\/td>\n<\/tr>\n | ||||||
211<\/td>\n | B.2.7 Procurement and product purchase B.2.7.1 General <\/td>\n<\/tr>\n | ||||||
212<\/td>\n | B.2.7.2 Computer files B.2.7.3 Scenario <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Building information modelling. Information structure based on EN ISO 16739 1 to exchange data templates and data sheets for construction objects – Configurable construction objects and requirements<\/b><\/p>\n |