OPEN BIM is a universal approach to the collaborative design, realisation, and operation of buildings based on open standards and workflows. The Industry Foundation Classes (IFC) data model is intended to describe building and construction industry data. It is a platform neutral, open file format specification that is not controlled by a single vendor or group of vendors. It is an object-based file format with a data model developed by buildingSMART to facilitate interoperability in the architecture, engineering and construction industry, and is a commonly used collaboration format in Building information modelling based projects.

1. OPEN BIM

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What is BIM?
Building Information MODELLING
The business process
Building Information MODEL
The digital prototype / database
Building Information MANAGEMENT
The organisation and control of data

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Statement A:
“BIM is a business process from which you can select
technology that best meets your needs.”
Statement B:
“BIM is a technology that determines your business
process based upon the vendor’s capability.”
What is BIM?

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Government BIM Strategy

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BIM Key Components (Eight Pillars)
Original Document
CAPEX
OPEX
COBie / FM
Cyber Security
Supplementary Legal agreement
Whole life cycle management
Level of geometry and information detail
Uniclass 2015
PAS–PubliclyAvailableSpecification
BS–BritishStandard

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What
Information
do I know &
want?
Information
Exchanges
Client
Decisions
Handover
Positive
Whole Life
Outcomes
Design Construct Operate
Information grows >>
Start the
Project
Contracted
Information
Exchange Points
Capital Project BIM
BS 1192 Overview
PAS1192-2 2013
Can my supply
chain supply it?
Who
delivers
what
when?
What Information
Do I Need & in
what format?

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What communication protocol
does it need to succeed?
A willingness to communicate
the common language
A platform to communicate
the common language
A common language

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UN
Bespoke Platform
Everyone learns everyone else's language

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Single Platform (Closed BIM)
Everybody, bar 1, has to change their language
UN

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Common Platform (OPEN BIM)
Everyone uses their own language with a common interpreter
UN
IFC

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BIM Maturity Diagram
“Our final vision for the delivery of this information will be a fully web enabled transparent (to the user)
scenario, based on the Building Smart IFC (Industry Foundation Classes) IDM (Information Delivery
Manual) and IFD (International Framework Dictionary) standards.” BIS BIM Strategy

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What is OPEN BIM?
OPEN BIM is an initiative of buildingSMART, providing a universal
approach to the collaborative design, realisation and operation
of buildings based on open standards and workflows.
Industry Foundation Classes (IFC) are the main buildingSMART
data model standard. The IFC format is registered by ISO as
ISO/PAS 16739.

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OPEN BIM data exchange
Import and export drawings, models, data and documentation
utilising a selection of standard files formats.

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1000’s of free fully
parametric objects

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Yellow:
Required,
checkable data
Green:
Requirable Fields
(see contract specs)
Purple:
Required if linked with
applications
Salmon:
Keyed in from other
sheets
Data Sheets (COBie)

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Data Sheets (COBie)

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Model Filtering and Classification
Architectural Model Engineering Model

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The Federated Model
The highly collaborative federated workflow process defines responsibilities,
ownership and level of detail, maintaining a clear definition of model
ownership for PII and protocols.

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The Federated Model
Authoring
Software
1
Authoring
Software
2
Authoring
Software
3
Contract
drawings
and specs.
Spreadsheet
COBie
IFC Federated
Model
dPOW Check
IFC 2X3
IFC2X3
FM MVD
DIRECT TO
FM TOOL

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Change Management
IFC Model 1
IFC Model 2

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Supply Chain
Traditional supply chain deliverables do not meet the needs of
a BIM proficient client
2D Drawings – (Limited value)
3D Intelligent objects & databases – (Exploitable data)