On the relation between Model View Definitions (MVDs) and Linked Data technologies
3 likes466 views
This white paper outlines the proposals from the Linked Data Working Group (LDWG) on how technologies and approaches that are common to the domains of Semantic Web, Linked Data, and the Web of Data (hereafter jointly called ‘Linked Data’) are related to Model View Definitions (MVDs). After a brief introduction of both the MVD concept (Section 1) and linked data technologies (Section 2), two main topics are discussed: ● Technical: handling MVDs with Linked Data technologies (Section 3) ● Industrial use cases: making most from the traditional MVD approach and Linked Data technologies (Section 4) The purpose of this white paper is to discuss how Linked Data technologies and approaches could be effectively deployed to support industrial use cases that are typically related to the generation, use and maintenance of MVDs.
![mvdXML: external data constraints
COBie Table Column IFC Reference
Contact Email IfcActor.Name
Contact CreatedBy
IfcActor.OwnerHistoryIfcOwnerHistory.OwningUserIfcPersonAndOrganizat
ion.ThePersonIfcPerson.Identification
Contact CreatedOn IfcActor.OwnerHistoryIfcOwnerHistory.CreationDate
Contact Category
IfcActor.HasAssociations[*]IfcRelAssociatesClassification.RelatingClassificati
onIfcClassificationReference.Identification
Contact Company
IfcActor.TheActorIfcPersonAndOrganization.TheOrganizationIfcOrganizatio
n.Name
Floor Description IfcBuildingStorey.Description
Floor Elevation IfcBuildingStorey.Elevation
Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam,
Netherlands.](https://image.slidesharecdn.com/mvdandlinkeddatawhitepapermw4joinedfinal-171128134308/85/On-the-relation-between-Model-View-Definitions-MVDs-and-Linked-Data-technologies-20-320.jpg)
![[Cib]achieving interoperability between bim and gis final](https://cdn.slidesharecdn.com/ss_thumbnails/cibachievinginteroperabilitybetweenbimandgisfinal-190919140136-thumbnail.jpg?width=560&fit=bounds)
More Related Content
What's hot (20)
Similar to On the relation between Model View Definitions (MVDs) and Linked Data technologies (20)
More from Ana Roxin (14)
Recently uploaded (20)
On the relation between Model View Definitions (MVDs) and Linked Data technologies
- 1. Model View Definitions and Linked Data The MVD White Paper 2017 buildingSMART International Standards Summit, Barcelona, Spain Technical Room, Matthias WEISE, Ana ROXIN 4 April 2017
- 2. 1. Introduction & Motivation 3. COBie example 4. Generalization Outline 2. Publishing vs. Filtering vs. Hybrid strategy
- 3. 1. Introduction & Motivation 3. COBie example 4. Generalization Outline 2. Publishing vs. Filtering vs. Hybrid strategy
- 4. MVD as part of IDM • MVD = use case specific subsets of IFC (manage and control IFC-based data exchange) • Domain knowledge -> orange part • Mapping to IFC -> blue part (specified via mvdXML)
- 5. Linked Data Use Cases based on W3C standards • Integrate building data into the Web of Data • Link to other data sources (GIS, weather data, material properties, product data, …) • Publish BIM data in the Web • Reasoning • …
- 6. buildingSMART and Linked Data – Technical comparison IFC Schema IFC file (*.ifc) EXPRESS/SPF (ISO 10303) ifcXML mvdXML XSD/XML ifcOWL IFC RDF graph OWL/RDF/ RDFS *.ifcxml *.mvdxml
- 7. mvdXML – Use Cases IFC4 Schema IFC file IFC4_RV.mvdXML IFC4 RV Schema IFC partial file IFC4-RV HTML documentation Energy.mvdxml + = = + Schema Level Instance Level = = Checking result
- 8. ModelView ExchangeRequirement ExchangeRequirement ConceptRoot Concept Concept ConceptTemplate selection of relevant information e.g. required room area Linked to software interfaces Linked to processes and data flow Class or main concept, e.g. Room -> IfcSpace configuration of a functional unit e.g. quantity or property definition Relevance in a particular exchange defines an instantiation tree and parameter values that can be used for later configuration mvdXML – Overview and Features
- 9. IFC/MVD and Linked Data – Questions? • How to combine/integrate LD into existing use cases and BIM tool landscape? • How to use/evaluate MVDs? Can we use existing query and reasoning engines?
- 10. 1. Introduction & Motivation 3. COBie example 4. Generalization Outline 2. Publishing vs. Filtering vs. Hybrid strategy
- 11. Publishing strategy Seppo Törmä. MVD presentation in LDWG session of buildingSMART Standards Summit Rotterdam, 2016
- 12. Seppo Törmä. MVD presentation in LDWG session of buildingSMART Standards Summit Rotterdam, 2016 Publishing strategy
- 13. Seppo Törmä. MVD presentation in LDWG session of buildingSMART Standards Summit Rotterdam, 2016 Filtering strategy
- 14. Seppo Törmä. MVD presentation in LDWG session of buildingSMART Standards Summit Rotterdam, 2016 Filtering strategy
- 15. Hybrid strategy Seppo Törmä. MVD presentation in LDWG session of buildingSMART Standards Summit Rotterdam, 2016
- 16. Recommendation & Challenges • Hybrid strategy combines advantages of both approaches • Linked Data is handled as own BIM use case(s) specified as MVD/mvdXML -> all irrelevant data can be removed from the BIM before generating the IFC-RDF graph • IFC-RDF data queries are handled with Semantic Web technologies -> full advantages of expressiveness and tool support can be used within this scenario • Differentiation between relevant and irrelevant data necessary! -> Identify LD use cases and their data requirements? • Duplication of data and its maintenance remains as a challenge, in particular in data roundtrip scenarios and if more specialized ontologies are used (see discussion about BOT and other ontologies in W3C community group). • Management of MVDs/mvdXML specifications and its re-use in LD scenarios (see COBie example)
- 17. 1. Introduction & Motivation 3. COBie example 4. Generalization Outline 2. Publishing vs. Filtering vs. Hybrid strategy
- 18. COBieOWL: an ontology based on COBie standard Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. COBieOWL, an OWL ontology based on COBie standard. In Proceedings of On the Move to Meaningful Internet Systems: OTM 2015 Conferences, Confederated International Conferences: CoopIS, ODBASE, and C&TC 2015, Oct 2015, Rhodes, Greece. Lecture Notes in Computer Science 9415, Springer 2015.
- 19. Adapting MVDs into logical rules mvdXML • Gathering of MVD data constraints for the considered case (e.g. COBie) Rule file • Mapping of constraints into logical rules (IF THEN) • Using URIs of ifcOWL concepts Triple store • Use a query language to retrieve COBie data, originally described using the IFC model A rule-based system to construct building views COBie MVD example following… Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 20. mvdXML: external data constraints COBie Table Column IFC Reference Contact Email IfcActor.Name Contact CreatedBy IfcActor.OwnerHistoryIfcOwnerHistory.OwningUserIfcPersonAndOrganizat ion.ThePersonIfcPerson.Identification Contact CreatedOn IfcActor.OwnerHistoryIfcOwnerHistory.CreationDate Contact Category IfcActor.HasAssociations[*]IfcRelAssociatesClassification.RelatingClassificati onIfcClassificationReference.Identification Contact Company IfcActor.TheActorIfcPersonAndOrganization.TheOrganizationIfcOrganizatio n.Name Floor Description IfcBuildingStorey.Description Floor Elevation IfcBuildingStorey.Elevation Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 21. Case study : COBieMVD • MVD data constraints are translated into Horn-like rules • Schema alignment (reducing heterogeneity) • Concept rule-based alignment (link between COBie and IFC concepts) Contact ≡ IfcActor ifcowl:IfcActor(x) → cobieowl:Contact(x) cobieowl:Contact(x) → ifcowl:IfcActor(x) Floor ≡ IfcBuildingStorey ifcowl:IfcBuildingStorey (x) → cobieowl:Floor(x) cobieowl:Floor(x) → ifcowl:IfcBuildingStorey (x) Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 22. Rules produced based on URIs from ifcOWL vocabulary Column Reference Horn-like Rule defined based on ifcOWL terms Email (Contact) IfcActor.Name ifcowl:IfcActor(X) ∧ ifcowl:name_IfcRoot (X, Y) ∧ expr:hasString(Y, Z) → cobieowl:name(X,Z) CreatedBy (Contact) IfcActor.OwnerHistory IfcOwnerHistory.OwningUser IfcPersonAndOrganization.ThePerson IfcPerson.Identification ifcowl:IfcActor(X) ∧ ifcowl:ownerHistory… (X, Y) ∧ ifcowl:owningUser…(Y,Z) ∧ ifcowl:thePerson…(Z, K) ∧ ifcowl:identification…(K, L) ∧ expr:hasString(L, M) → cobieowl:createdBy (X, M) Company (Contact) IfcActor.TheActor IfcPersonAndOrganization.TheOrganization IfcOrganization.Name ifcowl:IfcActor(X) ∧ ifcowl:theActor… (X, Y) ∧ ifcowl:theOrganization…(Y,Z) ∧ ifcowl:name…(Z, K) ∧ expr:hasString(K, M) → cobieowl:company (X, M) Description (Floor) IfcBuildingStorey.Description ifcowl:IfcBuildingStorey(X) ∧ ifcowl:description… (X, Y) ∧ expr:hasString(Y, Z) → cobieowl:description(X,Z) Elevation (Floor) IfcBuildingStorey.Elevation ifcowl:IfcBuildingStorey(X) ∧ ifcowl:elevation … (X, Y) ∧ expr:hasDouble(Y, Z) → cobieowl:elevation(X,Z) Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 23. Case study : COBieMVD • The choice of a horn-like rule syntax depends on the semantic graph database or reasoner • Stardog: SWRL, Stardog Rules Syntax • Ontobroker: RIF, ObjectLogic • EYE reasoner: N3Logic… • Main benefits: Formal and logic-based Possible to use inference engines for deducing new assertions Ease of implementation We only need to import created rules in the database No need to code a parser for mvdXML Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 24. Case study : COBieMVD • We can directly use a query language to retrieve COBie data that is originally described using the IFC model ?x a cobieowl:Contact . ?x cobieowl:email ?email. ?x a ifcowl:IfcActor . ?x ifcowl:name_IfcRoot ?y. ?y expr:hasString ?z becomes Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 25. 1. Introduction & Motivation 3. COBie example 4. Generalization Outline 2. Publishing vs. Filtering vs. Hybrid strategy
- 26. Combining ifcOWL and MVDs ifcOWL MVDs How to combine them ? Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 27. Types of Views An abstract view can be pre- defined as a set of logical rules by using ifcOWL vocabulary • Those rules can be stored with building data and schema A concrete view can be automatically generated based on rules and the ifcOWL ontology (populated) Users can easily define rule- based views ! Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 28. Defining Views through Rules Abstract views • Pre-defined, stored and exchanged Concrete views • Built from IFC data • Using abstract view definitions (i.e. rules). Easily configurable • Set of concepts (C) • Set of GUIDs (G) • Set of IFC relationships (R) A rule-based system to construct building views Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 29. The Duplex building project Produced in Weimar (Germany) for a design competition Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 30. Export phase inputs C = {BuildingEnvelope} G = { } R = { IfcRelDecomposes, IfcRelContainedInSpatialStructure, IfcRelVoidsElement, IfcRelFillsElement, IfcRelDefinesByProperties }. Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 31. Project: Institute Var File sizes Original SPF file : 6 MB Generated TTL file (with all original data): 35 MB Building view Format: STEP Physical file Query: All building doors SPF size : 2.11 MB C = {IfcDoor} R = { IfcRelDecomposes, IfcRelContainedInSpatialStructure, IfcRelVoidsElement, IfcRelFillsElement, IfcRelDefinesByProperties }. Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 32. Project: Medical clinic C = {IfcDoor, IfcWindow} R = { IfcRelDecomposes, IfcRelContainedInSpatialStructure, IfcRelVoidsElement, IfcRelFillsElement, IfcRelDefinesByProperties } File sizes Original SPF file : 107 MB Generated TTL file (with all original data): 689 MB Building view Query: All building doors and windows SPF size : 1.64 MB Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 33. Project: High-school File sizes Original SPF file : 111 MB Generated TTL file (with all original data): 762 MB Building view Query: All building doors and stairs SPF size : 21.5 MB C = {IfcDoor, IfcStair} R = {IfcRelDecomposes, IfcRelContainedInSpatialStructure, IfcRel-VoidsElement, IfcRelFillsElement, IfcRelDefinesByProperties } Tarcisio Mendes de Farias, Ana Roxin, Christophe Nicolle. A Semantic Web Approach for Building View Definitions. buildingSMART International Standards Summit , Apr 2016, Rotterdam, Netherlands.
- 34. Model View Definitions and Linked Data The MVD White Paper Thank you for your attention ! 2017 buildingSMART International Standards Summit, Barcelona, Spain Technical Room, Matthias WEISE, Ana ROXIN 4 April 2017