The recently signed partnership will strengthen the interoperability of open standards throughout the building and infrastructure lifecycle and value chain and improve the broader availability of digital product information.
During its annual General Assembly in Frankfurt in February 2017, Franz Ernst, President of ETIM International, in the presence of most of the country members of ETIM, signed a MEMORANDUM OF UNDERSTANDING between ETIM International and buildingSMART International
Following exploratory meetings between the international offices of both organisations in the second half of 2016, complemented by successful collaboration at local level in the Netherlands and Norway, the two parties agreed on the critical benefits of promoting closer coordination of their respective activities to strengthen open-standard based interoperability throughout the building and infrastructure lifecycle and value chain.
ETIM and bSI will work together on a joint project in respect of the buildingSMART Data Dictionary (bSDD) and ETIM’s product classification standard. In particular this will consider the inclusion of a single representation of the ETIM standard on the bSDD platform taking account of the governance and work flow requirements of both standard systems.
read more Source: buildingSMART
All events will take place at the Eindhoven University of Technology. Full program can be found in the links below.
The events during the openBIMweek:
bSI NewsbuildingSMART International | bSI Newsletter No.15. Feb 2014 by laurenssen
Newsletter for Open BIM. The latest news on IFC for infrastructure – plus a strategy to strengthen bSI Chapter links.
The BCF 2.0 proposal is public on github: Please use the issue tracker for feedback. Click on the image for the link.
buildingSMART-ISG (Implementer Support Group) has created a task group for defining BCF 2.0 and the result of this work will be provided before the next ISG meeting in Prague, on the 9 of September 2013. There are lots of improvements proposed, most important are:
- Support for multiple snapshots/viewpoints on topics.
- Improved control of colour, visibility and colour was added to visualization. This is a difficult issue as you never know how many models that might be open at the same time. The topic might have been created while two models where opened and is later “covered” by a third domain model.
- New support for bitmaps on viewpoints. This is to allow for overlays of text, sketches etc in viewpoints.
- Support for “BimSnipplets”. These are in effect small ifcXML, ifc2x4 or ifc4 files. This is to support eg. provision for voids.
- Support for “DocumentReference”. Could refer to a file in the topic folder or to an URL.
- Email added to comments for better identification of authors.
- A topic comment can now have the status of open or closed. If more granularity is needed “VerbalStatus” can be used. A set of proposed status lists might be provided with the documentation of the format.
- minor optional improvements like the possibility to index topics was also added.
The improved BCF 2.0 will be backwards compatible with BCF 1.0. The work is being documented on ISG Jira with participants from Catenda, DDS, Iabi, ISG, Solibri and Tekla.
A second task group currently is working on a standardised webservice, so that BCF could be synchronised automatically among various applications and platforms, in future.
The half-yearly meeting of the International User Group, the International Technical Management Committee, the Process Room, the Product Room and the Infrastructure Room will take place in Munich on 7th-10th October 2013.
The international buildingSMART BIM Week & Forum, Munich in 2013 is THE BIM EVENT of the year 2013 and a unique opportunity to receive an inside view into global BIM procedures!
This year the international buildingSMART meeting takes place in Germany. From the 7th to the 10th of October approved BIM experts meet in Munich to discuss the newest developing trends, innovations and their experiences with BIM.
The international BIM Week overlaps with ExpoReal, Europe´s biggest real estate fair. The organizer, buildingSMART e.V., expects about 700 international visitors during the BIM WEEK.
The event consists of two parts: the BIM Week Workshops and the buildingSMART Forum. More info, agenda and registration link http://www.buildingsmart.de/veranstaltungen/buildingsmart-forum/international-buildingsmart-bim-week-und-forum-2013/english-version
In spring 2013, the new release of IFC4 was formally published as
an ISO standard – ISO 16739.
At the end of a long and meticulous process, IFC emerges stronger and better, and ready to win new fans around the world.
‘Accreditation of IFC4 was a welcome achievement after the efforts of everyone involved,’ says Thomas Liebich, AEC3 DE, who led the work through buildingSMART’s Model Support Group.‘At the last round of voting, the response to ISO 16739 DIS [Draft International Standard] was overwhelmingly positive – 11 ‘yes’ votes and zero ‘no’ votes. It doesn’t get better than that.’
Read more in the ifc4 special supplement with the latest bSI Newsletter No.11 IFC4 special supplement – bSI Newsletter No.11
Route to accreditation
The process has involved intensive internal and external reviews to highlight and resolve the issues. As the process took its course, the IFC4 issue database accumulated a total of 1,100 issues that had to be resolved. ‘Software companies usually come in late in the review process,’ explains Thomas. ‘And there was more feedback on the last release candidate than ever before.
IFC has come a long way since the early releases in the mid-1990s. End-users will feel the benefits once IFC4 is implemented in commercial software, and there will be a ripple effect as clients get their projects built more efficiently and sustainably. Until then, newly certified IFC2x3 software should be used.
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 new BIM workflows – including 4D and 5D model exchanges, manufacturer product libraries, BIM to GIS interoperability, enhanced thermal simulations and sustainability assessments
• links all IFC property definitions to the buildingSMART data dictionary
• 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
• has been developed in line with the new mvdXML methodology (as the baseline for future computer-readable model views and data validation services)
• corrects technical problems found since the release of IFC2x3
• enables the extension of IFC to infrastructure and other parts of the built environment
It is important to know that the actual IFC file, whether it is an SPF (STEP Physical File) or XML representation, is always defined against a schema. The schema gives meaning (names and relations on top of the knowledge contained in the IFC file). The schema is static for all IFC4 files. It is published by buildingSMART as an EXPRESS schema and alternatively an XML schema.
Currently the latest version is the Release Candidate 4 of IFC4. It can be downloaded at:
IFC4 RC4 page
On top of the schema MVDs (Model View Definitions) are defined that describe what parts of the schema are used within a certain IFC file and/or extra restrictions on top of the schema. IFC4 is describing each instance of a building component that is contained in the IFC file. Click on picture for schema!
The instance contains semantic data like its name, description, type (wall vs. door), relations with other instances (connections to walls/other objects, opening elements), position and relation in the building structure as well as geometry and property sets. New to IFC4 is that each instance has also a type defined (in previous versions this was only valid for a subset of the instances). Non geometrical information can be attached to instances as well as to types.
Several instances can refer to the same type.
The position of instances is absolute or relative towards the position of another instance, these relative placements can be nested and several levels deep. Geometry of each visible instance is defined. It is however possible to reuse defined geometry from other instances.
Not all defined geometry in an IFC file is visible in CAD or viewers. For example space boundaries between walls and spaces are often defined but mostly not shown. Each instance can have more than 1 geometrical representation and a single 3D representation of an instance can have more than one color.
IFC4 files are full of relations. Many of these relations are inverse relations defined by the schema and not visible in the text view of an IFC file.
published by Peter P. Bonsma — on www.buildingsmart-tech.org