BIM Terminology by breakwithanarchitect

1. BIM DESIGN HUB
BASIC BIM
TERMINOLOGY

2. Building Information
Modeling
BIM is a shared digital representation of a built asset to facilitate
design, construction, and operation processes to form a reliable basis
for decisions.
Building Information
Model
BIM model is the object – based 3D digital model, that contains
information and data for the whole lifecycle of a built asset.

3. 3D
3D modeling based on objects that include non-graphical
data
4D
4D refers to the addition of time information to a 3D model
5D
5D refers to attaching cost data to a 3D object
6D
6D refers to the use of data- rich models for facility
management

4. Level 0
In Level 0, 2D simple CAD objects are used to create 2D drawings, Communication is done via
paper and basic prints. The is no collaboration.
Level 1
In Level 1, 3D simple 3D CAD objects are used to create 3D models and 2D drawings, Data are
shared through Common Data environment. The collaboration is partial with 3D visuals and
controls in modeling tools.
Level 2
In Level 2, 3D objects with information and libraries are used in a BIM environment. The
collaboration is combined and at this level 4D and 5D can be developed.
Level 3
In Level 3, data is open and available for all parties in the Common Data Environment.
The collaboration is integrated with advanced simulation and integrated project delivery.
At this stage the concept of lifecycle management can be developed.

5. BIM object
A BIM object is a virtual representation of a real object, that includes
detailed information about object’s geometry and physical
characteristics.
Level of development, LOD
The Level of Development (LOD) Specification is a reference that
enables practitioners in the AEC Industry to specify and articulate
with a high level of clarity, the content and reliability of Building
Information Models at various stages in the design and construction
process.

6. Asset information model, AIM
The information model that relates to the operational phase. It
contains the information necessary to support asset management.
Project Information Model, PIM
Information Model relating to the delivery phase. The PIM model is
being developed during the design and construction process of a
project.

7. BIM Execution Plan, BEP
BEP is a plan prepared by suppliers to explain how information
modeling aspects of a project will be carried out.
Common Data environment, CDE
CDE is one location for any given project or asset, for collecting,
managing and sharing project data/information.

8. COBie
Construction Operations Building Information Exchange (COBie) is a
non-proprietary international data format, used to exchange non –
graphical information for facilities management.
Uniclass
Uniclass 2015 is a unified classification for the UK industry covering
all construction sectors. It contains consistent tables classifying items
of all scale from a facility such as a railway down through to products
such as a CCTV camera in a railway station.

9. IFC
IFC is an open industry Foundations classes format developed by
Building Smart. It is considered the interoperability solution between
different software applications.
Exchange Information Requirements, EIR
EIR requirements define the information that will be required by the
employer from both their own internal team and from suppliers for the
development of the project and for the operation of the completed
built asset.

10. RACI
RACI is a compiled abbreviation to identify participants or
stakeholders (on a project), as Responsible for (R), need to Authorize
(A), those who can Contribute to (C) or are to be kept Informed (I)
about a project activity.
Level of information need
The level of information need is a framework that enables the right
level of information to be provided, to satisfy the information related
purposes at each information exchange.

11. BIM standards can be:
✓ Object Standards
✓ Modeling and document practices
✓ Collaborative information Standards
✓ Corporate Standards
✓ National BIM Standards
✓ International Standards, ISO 19650 series
✓ Local standards, Annex ISO 19650 series
✓ CEN standards, EN ISO 19650

12. BIM according to ISO 19650 series
The ISO 19650 series is an international standard of good practice. It
defines the information management principles and requirements
concerning the design, construction and managements of built assets.
ISO 19650 “sets out the concepts and principles for the business
processes across the built environment sector in support of
management and production of information during the lifecycle of built
assets, referred to as ‘information management’ in the text, when using
building information modelling,(BIM).”