definition “what is ifc all about ?” short history of ifc ... events/bim conference... · ifc...

Definition

Short History of IFC

Workflows today with IFC

The future of IFC

“What is IFC all about ?”

“Where are we today ?”

“Every exchange has a purpose”

“Where will the journey take us ?”

Industry Foundation Classes (IFC)

IFC Overview Presentation

Definition ›› History ›› Today ›› Tomorrow

IFC – at a glance

A structure to store and exchange BIM data

or the standard for “open BIM”• well defined and documented data schema

• determines BIM data exchange

The important IFC values are:• open

• neutral

• comprehensive

• customizable

• extensible

IFC – a buildingSMART and ISO standard

buildingSMART an organization being• Independent

• International

• Not for profit

• Open to all in construction

buildingSMART standards• Consensus based industry standards

• Requirements are project driven

• Standards are open and maintained

• Collaboration with ISO for formal standards

ISO16739 (IFC)

IFC fundamentals for a BIM user

Use IFC as intended • share and distribute !

Going wrong? Locate the error

• html does not work ?

• issue with browser support ?

• issue with published content ?Image from http://www.browsera.com/

IFC – backbone structure

project

component

spatial structure functional structure

geometry attribution

shared geometry shared attribution

History of IFC Development

IFC 1.0 to IFC 2.0 – early prototypes use: 2000 - 2002

IFC 2x to IFC 2x2 – early adopters use: 2002 - 2008

IFC 2x3 – in practical use today use: 2008 - 2017

IFC 4 – released, forthcoming use: from 2015 onwards

Some facts about development efforts so far

about 50 person/years of total development (in 15 years)

• About 2-3 person/years per year direct development effort

• Time spend in buildingSMART International MSG (≈50% volunteered)

• More spend by external reviewers, project development teams, bSI community

Specification work is the tip of the iceberg

• Software development efforts (about 150 applications supporting IFC)

• Open BIM guidelines, training, education, etc.

Single goal: secure IFC as the true openBIM standard worldwide

Early examples

First ever IFC exchange – 1996 at the ACS convention in FrankfurtHere examples from year 1999 (IFC1.5.1)

Todays examples

2.8GB IFC file with references. Combines AutoCAD (2D drafting), Tekla (3D structural), AutoCAD MEP (3D piping & mechanical), CadPipe (3D fire design), Revit (3D Architecture), and SketchUp. merged in Tekla. Source: Greg Robinson, Lucrosol

quoted in upFront.eZine #681

What’s in a typical IFC coordination view file

IFC is not solving everything

KK„eierlegende Wollmilchsau“

German mystical creature“one animal laying eggs, giving milk,

providing wool and delivering pork”

Model View Definitions

There is no single “all-in-one” IFC implementationthe “Full IFC” is a repository of schema definitions for all disciplines and life cycle

the “IFC Model View Definition” is a subset, that satisfies one or many purposes

Any IFC implementation implements 1..n Model View Definitions

IFC Coordination View IFC Structural Analysis View IFC Thermal Analysis View

Workflows supported today (IFC2x3 coordination view)

linked as reference model linked as reference model

Architectural BIM Structural BIM

linked as reference model

Architectural BIM

linked as reference model

Mechanical BIM

import as native model

Workflows to be better supported by IFC4

IFC Coordination View + space boundaries Input model for thermal analysis

Architectural BIM

Thermal BIMtransformation

Architectural BIM Architectural BIM

Import as native dimension driven objects

IFC Coordination View + space boundaries Input model for thermal analysis

Architectural BIM

Thermal BIM

Update of properties

transformation

Workflows not supported – “roundtrip”

Architectural BIM Architectural BIM

Import as native parametric objects

IFC is today

Implemented in over 150 different

software applications of all kind

Some software certified by

buildingSMART for better quality

see full list at www.buildingsmart-tech.org/implementation

IFC is today

used in many projects• for openBIM collaboration

• for openBIM reporting

• for architectural competitions

• for handover process to the client

• for code checking and evaluation

• ...

Oltmanns & Partner, Germany, smart building, OldenburgVeccins, BIM Prize 2011, Netherlands

IFC is today

set as open format in

BIM guidelines• as means of neutral

public procurement

• as means of integratingdifferent project participants

• as means of project process control

• as means of project submission validation

• as means of submitting thehandover documents

• ... © Mark Bew and Mervyn Richards

IFC is today

demanded by many public clients required today in several countries:• USA

• Norway

• Finland

• Denmark

future announcement have been made in:• Netherlands

• United Kingdom

• Mexico

• Iceland

• Estonia

• ...

IFC4 is released – what comes next ?

secured by future developmentnext major release IFC4 published with many important enhancements

IFC4 final published March 2013

submitted to ISO as ISO 16739final International Standard (IS) status from ISO obtained

ISO 16739 published in April 2013

simple ifcXML4 – revamping ifcXML

A single solid in ifcXML for IFC2x3<IfcDirection id="i1308624497">

</DirectionRatios></IfcDirection>

<IfcRectangleProfileDef id="i1308624493"><ProfileType>area</ProfileType><ProfileName>1m x 1m rectangle</ProfileName><Position>

</Location></IfcAxis2Placement2D>

</Position><XDim>1000.</XDim><YDim>1000.</YDim>

</IfcRectangleProfileDef>

50 XML lines = 100%

<IfcExtrudedAreaSolid id="i1922" Depth="2000."> <SweptArea xsi:type="IfcRectangleProfileDef" id="i1925" ProfileType="area"

ProfileName´="1m x 1m rectangle" Xdim="1000." Ydim="1000." /><Position xsi:type="IfcAxis2Placement3D" id="i1928">

7 XML lines = down to 14%

</SweptArea><Position>

</Position><ExtrudedDirection>

</IfcExtrudedAreaSolid>

</IfcAxis2Placement3D>

</Coordinates></IfcCartesianPoint>

</Coordinates></IfcCartesianPoint>

Same single solid in ifcXML4

Reference workflow

main considerationbroad proliferation of IFC

visualization (any device)

clash detection

coordination

reports

frequent

no shift of ownership

Design transfer workflow

main considerationkeep parametrics

transfer design intent

keep edibility

(to the extent possible)

often “one-of”

quality over speed

shift of ownership

Discipline specific BIM Discipline specific BIM

Import as native dimension driven objects

Architectural BIM Mechanical BIM

Development of Model View Definitions

IFC4 Design Transfer View is superset of IFC2x3 Coordination View

IFC4 Design Transfer View is superset of IFC4 Reference View

IFC4 Reference View is subset of IFC4 Design Transfer View

IFC2x3 Coordination View

IFC4 Design Transfer View

IFC4 Reference

Can IFC also be applied to infrastructure BIM ?

First prototypes today

IFC2x3 “Proxy” View – volumes, properties, quantities

IFC4 – Stubs for infrastructure – horizontal zones, GIS coordinates

Multi-disciplinary nature of infrastructure projects

IFC5 – scope of new extensions

Gradual development of sector specific IFC for Infra extensions

Common resources (alignment, geotechnical, earthwork, etc.)

Bridge, road, rail, tunnel, etc.

Corecommon extensions

shared building elementand spatial structures

shared infrastructure elementand spatial structures

Bridge domain extension

Road domain extension

HVAC domain extension

Architecture domain extension

common resources, adding alignmentand linear referencing

IFC5Infrastructure

IFC5 – going into infrastructure

but not alone – in collaboration with other groups

Products Buildings Industrial GISInfrastructure

STEP IFC IFC+ / 15926 gmlIFC+ gml+

ISO TC184 ISO TC59 Fiatech OGCOGC

IFC1 & IFC2First trials to move

IFC2xFirst trials to stand up

IFC2x3Learning to play

IFC4Looking ahead to a bright future

IFC5Growing up(includes infra)

IFC6 & beyondThe peak of openBIM(all in place)

UnknownA new paradigm arrives, openBIMwill have to give way to next generation schema.

AEC3 Deutschland GmbH D-80634 München Wendl-Dietrich-Str.16 Tel. +49 89 18703223 info@aec3.de www.aec3.de

Thank you for your attention !

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