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  • Specifications — Welcome to buildingSMART-Tech.org
    BIM it makes the difference between BIM and open BIM Quick links for developers IFC4 Add1 release online download last IFC2x3 release online download other buildingSMART Standards IFC Model View Definitions The other buildingSMART standards are the Information Delivery Manual IDM the International Framework for Dictionaries IFD buildingSMART also harvests externally developed specifications in the realm of building information modeling The following specifications are currently acknowledged BIM Collaboration Format BCF Model View Definition markup language mvdXML Actual implementations of IFC always focus on a purpose the support of one or many exchange requirements The subset of IFC corresponding to it is called Model View Definition MVD They are the basis for buildingSMART certification Additional implementer agreements ease the implementation Quick links for developers IFC2x3 Coordination View V2 0 most common MVD with open certification process IFC4 Reference View and IFC4 Design Transfer View buildingSMART Final Standards since July 2015 with upcoming certification process Specifications IFC Overview IFC Releases ifcXML Overview mvdXML Overview MVD Releases Pset Releases BCF Releases Related Specifications Specification tools Search Advanced Search IFC Dev Blog IFC Dev Blog More Registration This site contains content which is only available to registered users To get access to the content

    Original URL path: http://www.buildingsmart-tech.org/specifications/specifications (2016-02-11)
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  • MVD Overview summary — Welcome to buildingSMART-Tech.org
    a way to specifically indicate what data is needed When parties are involved in a contract requiring data to be provided a contract may indicate that data is to be delivered according to a specific Model View Definition and such data may be automatically validated to determine conformance Model View Definitions MVDs are encoded in a format called MVDXML and define allowable values at particular attributes of particular data types For example an MVD may require that a wall provide a fire rating a classification according to OmniClass Table 22 and information required for structural analysis such as elastic modulus of materials In simple cases such rules may define a single attribute on a single data type while more complex cases may consist of graphs of objects and collections Various validation formats are already commonplace in the software industry for checking data conformance such as XML Schema Definition XSD EXPRESS ISO 10303 11 Schematron and validation frameworks within programming languages and tools e g NUnit JUnit It is not the goal of MVDXML to replace such approaches but rather automate them such that information requirements can be defined at a higher level where downstream validation formats can be automatically generated rather than relying on manual efforts which are error prone and may become out of sync with specifications However validation is only one use for MVDXML the higher level nature of MVDXML enables many other uses as follows Software applications may make use of MVDXML either statically designed to support a particular model view or dynamically designed to support any model view Examples of dynamic functionality that may be supported include Exporting data that is automatically filtered to include only data within a model view Downloading data from a server where MVDXML essentially serves as a query language Validating data

    Original URL path: http://www.buildingsmart-tech.org/specifications/mvd-overview/mvd-overview-summary (2016-02-11)
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  • BCF intro — Welcome to buildingSMART-Tech.org
    endusers who wanted to exchange issues proposals and change requests in BIM data models always had to exchange the whole BIM model as a bulk data The receiver had to compare different releases of the BIM model in order to filter the requests from the sender As a much more efficient way to support this effort the idea of developing an open standard to enable BIM workflow communication between different software tools had been proposed to buildingSMART In 2010 Tekla and Solibri came up with an initial XML schema called bcfXML v1 to encode messages containing BIM topics e g issues proposals change requests addressed in BIM data models The implication was to boost the degree of collaboration in BIM workflows by only exchanging the lean topics and not the entire bulk BIM data model between software applications bcfXML v1 became implemented by several software packages and valuable experiences could be gained by using it in BIM based projects In 2013 based on these experiences a task force lead by Solibri was established in buildingSMART s ISG Implementer Support Group to enhance bcfXML v1 in certain focal points like flexibility related to project specific aspects the possibility to exchange maschine readable BCF Topics with attached BIM Snippets small components of a BIM model attached multiple viewpoints Finally and after intense public review bcfXML v2 became released and was adopted by buildingSMART in October 2014 In 2014 as a second major objective of the BCF task force the BCF webservice bcfAPI v1 was introduced by iabi Institute of applied Building Informatics The idea behind this is to exchange BCF Topics not only manually or by e mail attachments via bcfXML files but seamlessly and automated via a standardized RESTful API bcfAPI v1 is currently in the status of a Release Candidate

    Original URL path: http://www.buildingsmart-tech.org/specifications/bcf-releases/bcf-intro (2016-02-11)
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  • Implementation summary — Welcome to buildingSMART-Tech.org
    Group ISG what can BIM users expect service to developers Over 150 software applications support import and or export of IFC data It has become the open standard for BIM data Beside the support statement solely by the software developer buildingSMART offers a certification program that provides an additional level of certainty to the BIM user by stating that participating software applications can fulfill their exchange needs Quick links for BIM users list of software claiming IFC support list of software participating in IFC certification Industry Foundation Classes IFC are an open standard for BIM the openBIM data standard It is a comprehensive schema that enables support for many exchange scenarios but here you find support Expect implementation guideline some samples and the ability to contribute using the open IFC issue database Quick links for developers toolboxes to help implementing IFC implementer agreements for the IFC2x3 Coordination View Implementation get involved first steps and tools IFC2x3 impl guidance IFC4 impl guidance Implementer s community accompanying documents frequently asked questions Implementations Search Advanced Search IFC Dev Blog IFC Dev Blog More Registration This site contains content which is only available to registered users To get access to the content you must

    Original URL path: http://www.buildingsmart-tech.org/implementation/implementation-summary (2016-02-11)
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  • Certification Summary — Welcome to buildingSMART-Tech.org
    products in IFC2x3 CV2 0 Importance to users Service to developers The most asked questions for interoperability that indicates its importance to users are does it work for the software applications used in the actual project does it support a specific workflow if there is an issue who needs to address it The buildingSMART certification 2 0 procedure and the supporting online certification platform addresses those questions Check also the Understand certification page that introduces the buildingSMART certification by an analogy to other certificates and quality reports Software developers aiming for a distinguished IFC support look for support the buildingSMART certification 2 0 is the only official IFC certification issued by buildingSMART International it offers great value to support the quality assurance process a protected and well recognized certification logo is awarded The buildingSMART certification 2 0 offers automatic IFC file checking high quality test cases for export and import an online support forum for questions and answer and a 24 7 availability of the certification server Certification Certification details Understand certification Importance to users Service to developers IFC Certification 2 0 IFC2x certification Search Advanced Search IFC Dev Blog IFC Dev Blog More Registration This site contains content which

    Original URL path: http://www.buildingsmart-tech.org/certification/summary (2016-02-11)
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  • IFC4 Release Summary — Welcome to buildingSMART-Tech.org
    you to subscribe to the ifc4 mailing list that is hosted here use this link to subscribe and maintain your account after subscription you will receive an automatic notification with the mailing address and you will receive further announcements and information What is new in IFC4 The following presentation held at the official release date shows the major highlights of IFC4 IFC4 What is new the major highlights IFC4 at a glance enhances the capability of the IFC specification in its main architectural building service and structural elements with new geometric parametric and other features enables numerous new BIM workflows including 4D and 5D model exchanges product libraries BIM to GIS interoperability enhanced thermal simulations and sustainability assessments improves readability and ease of access to the documentation with numerous implementation concepts and fully linked examples contains ifcXML4 schema fully integrated into the IFC specification in addition to the EXPRESS schema is fully integrated with new mvdXML technology and allows easy definition of data validation services for IFC4 data submissions corrects technical problems found since the release of the IFC2x3 enables the extension of IFC to infrastructure and other parts of the built environment Why implement IFC4 Keep your customers happy by improving your IFC support Take advantage of the technical improvements and consistency of IFC4 Remember it is now possible to formally support model view definitions and validate them Base your development of a fully documented IFC4 Model View Definition MVD thanks to mvdXML formal specification Benefit from IFC the easy way with Simple ifcXML Use multi lingual property definitions linked to the buildingSMART data dictionary to customize your products Broaden your IFC support with the new IFC4 objects and workflows it will help you to attract new customers Reach a wider market with IFC4 as a full ISO standard

    Original URL path: http://www.buildingsmart-tech.org/specifications/ifc-releases/ifc4-release/ifc4-release-summary (2016-02-11)
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  • IFC4 Add1 Release — Welcome to buildingSMART-Tech.org
    documentation format has been further improved for readability A language independent section to describe the entities and types with their attributes and relationships is now available and separate to the EXPRESS and XSD code The use of concept templates chapter 4 and concepts is greatly enhanced based on the mvdXML specification to enable better MVD developments and validation Minor schema enhancements reflect the experience from pilot implementations of the IFC4 enhancements One additional schema enhancement has been added after intensive discussions and considerations a simplified and far more compact definition of poly lines with arc segments See the following summary of the rationale behind adding this additional geometry definition An overview of all changes is provided here A detailed listing of all issues resolved for the beta release is shown here IFC4 Add 1 for MVD development the first official Model View Definition for IFC4 will be based on the Addendum 1 Therefore all upcoming buildingSMART International IFC Certification are based on IFC4 Addendum 1 see IFC4 Reference View and IFC4 Design Transfer View as the first two bSI MVD s based on IFC4 Add1 IFC4 Add 1 under ISO16739 it is planned to create a new work item for

    Original URL path: http://www.buildingsmart-tech.org/specifications/ifc-releases/ifc4-add1-release (2016-02-11)
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  • IFC4 Reference View — Welcome to buildingSMART-Tech.org
    recommend to you to subscribe to the ifc4 mailing list that is hosted here use this link to subscribe and maintain your account after subscription you will receive an automatic notification with the mailing address and you will receive further announcements and information Purpose of the IFC4 Reference View The main purpose of the IFC4 Reference View is to define a standardized subset of the IFC4 schema a Model View Definition MVD that is particularly suitable for all BIM work flows that are based on reference models where the exchange is mainly one directional Here requested modifications of the BIM data mainly of the shape representation are handled by a change request to the original author and changes not executed upon the imported IFC data to be sent back to the original source Examples of this reference workflow are Coordination planning combining different discipline specific IFC models for visual checking Clash detection finding clashes between different discipline specific IFC models Background reference loading an IFC model usually from a different discipline as a linked model Quantity take off determine the quantities of the various model elements with the IFC model Construction sequencing taking the IFC model and associating it to a construction schedule Visual presentation for presenting the IFC model to a broad audience Common characteristics of the workflow using reference models are The source of the BIM information remains with the originator The full parametric behaviour and thereby the intellectual engineering property remains with the originator The ownership of the model and responsibility for its correctness remains with the originator The original model is published as IFC4 Reference View model reflecting the as is status The receiver of the IFC4 Reference View model has access to the full model content The receiver of the IFC4 Reference View is not

    Original URL path: http://www.buildingsmart-tech.org/specifications/ifc-view-definition/ifc4-reference-view/ifc4-reference-view (2016-02-11)
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