Building information modeling (BIM) is a process supported by various tools, technologies and contracts involving the generation and management of digital representations of physical and functional characteristics of places. Building information models (BIMs) are
computer files A computer file is a System resource, computer resource for recording Data (computing), data in a Computer data storage, computer storage device. Just as words can be written to paper, so can data be written to a computer file. Files can be edite ...
(often but not always in proprietary formats and containing proprietary data) which can be extracted, exchanged or networked to support decision-making regarding a built asset. BIM software is used by individuals, businesses and government agencies who plan,
design A design is a plan or specification for the construction of an object or system or for the implementation of an activity or process, or the result of that plan or specification in the form of a prototype A prototype is an early sample, mode ...
construct Construct, Constructs or constructs may refer to: * Construct (information technology), a collection of logic components forming an interactive agent or environment ** Language construct * Construct (album), ''Construct'' (album), a 2013 album by ...

, operate and maintain buildings and diverse physical infrastructures, such as water, refuse, electricity, gas, communication utilities, roads, railways, bridges, ports and tunnels. The concept of BIM has been in development since the 1970s, but it only became an agreed term in the early 2000s. Development of standards and adoption of BIM has progressed at different speeds in different countries; standards developed in the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain,Usage is mixed. The Guardian' and Telegraph' use Britain as a synonym for the United Kingdom. Some prefer to use Britain as shorth ...

United Kingdom
from 2007 onwards have formed the basis of international standard ISO 19650, launched in January 2019.


The concept of BIM has existed since the 1970s. The first software tools developed for modelling buildings emerged in the late 1970s and early 1980s, and included workstation products such as Chuck Eastman's Building Description System and GLIDE,
RUCAPSRUCAPS (Riyadh University Computer Aided Production System) was a computer aided design Computer-aided design (CAD) is the use of computer A computer is a machine that can be programmed to carry out sequences of arithmetic or logical opera ...
Sonata Sonata (; Italian: , pl. ''sonate''; from Latin and Italian: ''sonare'' rchaic Italian; replaced in the modern language by ''suonare'' "to sound"), in music Music is the of arranging s in time through the of melody, harmony, rhythm, a ...
Reflex In biology Biology is the natural science that studies life and living organisms, including their anatomy, physical structure, Biochemistry, chemical processes, Molecular biology, molecular interactions, Physiology, physiological mechanism ...
and Gable 4D Series. The early applications, and the hardware needed to run them, were expensive, which limited widespread adoption. The term 'building model' (in the sense of BIM as used today) was first used in papers in the mid-1980s: in a 1985 paper by Simon Ruffle eventually published in 1986, and later in a 1986 paper by Robert Aish - then at GMW Computers Ltd, developer of RUCAPS software - referring to the software's use at London's Heathrow Airport. The term 'Building Information Model' first appeared in a 1992 paper by G.A. van Nederveen and F. P. Tolman. However, the terms 'Building Information Model' and 'Building Information Modeling' (including the acronym "BIM") did not become popularly used until some 10 years later. In 2002,
Autodesk Autodesk, Inc. is an American multinational Multinational may refer to: * Multinational corporation, a corporate organization operating in multiple countries * Multinational force, a military body from multiple countries * Multinational state, a ...
released a
white paper A white paper is a report or guide that informs readers concisely about a complex issue and presents the issuing body's philosophy Philosophy (from , ) is the study of general and fundamental questions, such as those about existence Exis ...

white paper
entitled "Building Information Modeling," and other software vendors also started to assert their involvement in the field. By hosting contributions from Autodesk,
Bentley Systems Bentley Systems, Incorporated, is an American-based software development Software development is the process of conceiving, specifying, designing, programming, documenting, testing, and bug fixing involved in creating and maintaining applic ...
Graphisoft Graphisoft SE is a Hungarian design software company headquartered in Budapest, Budapest, Hungary. As a subsidiary of Nemetschek, Graphisoft develops Building Information Modeling software products for architects, interior designers and planners. G ...

, plus other industry observers, in 2003, Jerry Laiserin helped popularize and standardize the term as a common name for the digital representation of the building process. Facilitating exchange and interoperability of information in digital format had previously been offered under differing terminology by Graphisoft as "Virtual Building", Bentley Systems as "Integrated Project Models", and by Autodesk or
Vectorworks Vectorworks, Inc. is a U.S.-based software development Software development is the process of conceiving, specifying, designing, programming, documenting, testing, and bug fixing involved in creating and maintaining applications, framework ...
as "Building Information Modeling". The pioneering role of applications such as RUCAPS, Sonata and Reflex has been recognized by Laiserin as well as the UK's
Royal Academy of Engineering The Royal Academy of Engineering (RAEng) is the UK's national academy#REDIRECT National academy A national academy is an organizational body, usually operating with state financial support and approval, that co-ordinates scholarly research ...
. Due to the complexity of gathering all the relevant information when working with BIM, some companies have developed software designed specifically to work in a BIM framework. These applications differ from architectural drafting tools such as
AutoCAD AutoCAD is a commercial Commercial may refer to: * a dose of advertising conveyed through media (such as - for example - radio or television) ** Radio advertisement ** Television advertisement * (adjective for:) commerce, a system of voluntary e ...
by allowing the addition of further information (time, cost, manufacturers' details, sustainability, and maintenance information, etc.) to the building model. As Graphisoft had been developing such solutions for longer than its competitors, Laiserin regarded its
ArchiCAD ARCHICAD is an architectural Building Information Modeling, BIM Computer-aided design, CAD software for Apple Macintosh, Macintosh and Microsoft Windows, Windows developed by the Hungary, Hungarian company Graphisoft. ARCHICAD offers computer ai ...
application as then "one of the most mature BIM solutions on the market." Following its launch in 1987, ArchiCAD became regarded by some as the first implementation of
BIM ''Bim'' is a 1974 Trinidad and Tobago Trinidad and Tobago (, ), officially the Republic of Trinidad and Tobago, is the southernmost island country in the Caribbean The Caribbean (, ; es, Caribe; french: Caraïbes; ht, Karayib; also ...
,Lincoln H. Forbes, Syed M. Ahmed, (2010) ''Modern Construction: Lean Project Delivery and Integrated Practices'', CRC Press. as it was the first
CAD Computer-aided design (CAD) is the use of computers (or ) to aid in the creation, modification, analysis, or optimization of a design. This software is used to increase the productivity of the designer, improve the quality of design, improve comm ...
product on a personal computer able to create both 2D and 3D geometry, as well as the first commercial BIM product for personal computers. However, ArchiCAD founder Gábor Bojár has acknowledged to
Jonathan Ingram Jonathan Ingram is a Kiribati Kiribati (), officially the Republic of Kiribati (Gilbertese language, Gilbertese: '' ibaberikiKiribati''),In Appendix 6: Letter to the author, p. 281, .

Interoperability and BIM standards

As some BIM software developers have created proprietary data structures in their software, data and files created by one vendor's applications may not work in other vendor solutions. To achieve
interoperability Interoperability is a characteristic of a product or system, whose interfaces are completely understood, to work with other products or systems, at present or in the future, in either implementation or access, without any restrictions. While the ...

between applications, neutral, non-proprietary or open standards for sharing BIM data among different software applications have been developed. Poor software interoperability has long been regarded as an obstacle to industry efficiency in general and to BIM adoption in particular. In August 2004 a US National Institute of Standards and Technology (
NIST The National Institute of Standards and Technology (NIST) is a physical sciences Physical science is a branch of natural science that studies abiotic component, non-living systems, in contrast to life science. It in turn has many branches, e ...

) report conservatively estimated that $15.8 billion was lost annually by the U.S. capital facilities industry due to inadequate interoperability arising from "the highly fragmented nature of the industry, the industry’s continued paper-based business practices, a lack of standardization, and inconsistent technology adoption among stakeholders". An early BIM standard was the CIMSteel Integration Standard, CIS/2, a product model and data exchange file format for structural steel project information (CIMsteel: Computer Integrated Manufacturing of Constructional Steelwork). CIS/2 enables seamless and integrated information exchange during the design and construction of steel framed structures. It was developed by the
University of Leeds , mottoeng = And knowledge will be increased , established = 1831 – Leeds School of Medicine The School of Medicine is the medical school of the University of Leeds, in the city of Leeds, West Yorkshire, England. The School of Medicine wa ...
and the UK's Steel Construction Institute in the late 1990s, with inputs from
Georgia Tech * The Georgia Institute of Technology, commonly referred to as Georgia Tech or, in the state of Georgia, as Tech, is a public In public relations Public relations (PR) is the practice of managing and disseminating information from a ...
, and was approved by the
American Institute of Steel Construction The American Institute of Steel Construction (AISC) is a not-for-profit A nonprofit organization (NPO), also known as a non-business entity, not-for-profit organization, or nonprofit institution, is a legal entity organized and operated for ...
as its data exchange format for structural steel in 2000. BIM is often associated with
Industry Foundation Classes The Industry Foundation Classes (IFC) data model is intended to describe architectural, 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. ...
(IFCs) and
aecXML {{lowercase, title=aecXML aecXML (architecture, engineering and construction extensible markup language) is a specific XML Extensible Markup Language (XML) is a markup language #REDIRECT Markup language In computer text processing, a markup l ...
– data structures for representing information – developed by
buildingSMART buildingSMART, formerly the International Alliance for Interoperability Interoperability is a characteristic of a product or system, whose interfaces are completely understood, to work with other products or systems, at present or in the future, ...
. IFC is recognised by the
ISO The International Organization for Standardization (ISO ) is an international standard An international standard is a technical standard A technical standard is an established norm Norm, the Norm or NORM may refer to: In academic discipline ...
and has been an official international standard, ISO 16739, since 2013. Construction Operations Building information exchange (COBie) is also associated with BIM. COBie was devised by Bill East of the
United States Army Corps of Engineers , colors = , battles = , battles_label = Wars , website = , commander1 = LTG Scott A. Spellmon , commander1_label = Comma ...
in 2007, and helps capture and record equipment lists, product data sheets, warranties, spare parts lists, and preventive maintenance schedules. This information is used to support operations, maintenance and asset management once a built asset is in service. In December 2011, it was approved by the US-based
National Institute of Building Sciences The National Institute of Building Sciences is a non-profit, non-governmental organization that brings together representatives of government, the professions, industry, labor and consumer interests, and regulatory agencies to focus on the identifi ...
as part of its National Building Information Model (NBIMS-US) standard. COBie has been incorporated into software, and may take several forms including spreadsheet, IFC, and ifcXML. In early 2013
BuildingSMART buildingSMART, formerly the International Alliance for Interoperability Interoperability is a characteristic of a product or system, whose interfaces are completely understood, to work with other products or systems, at present or in the future, ...
was working on a lightweight XML format, COBieLite, which became available for review in April 2013. In September 2014, a code of practice regarding COBie was issued as a British Standard: BS 1192-4. In January 2019, ISO published the first two parts of ISO 19650, providing a framework for building information modelling, based on process standards developed in the United Kingdom. UK BS and PAS 1192 specifications form the basis of further parts of the ISO 19650 series, with parts on asset management (Part 3) and security management (Part 5) published in 2020. The IEC/ISO 81346 series for reference designation has published 81346-12:2018, also known as RDS-CW (Reference Designation System for Construction Works). The use of RDS-CW offers the prospect of integrating BIM with complementary international standards based classification systems being developed for the Power Plant sector.


ISO 19650:2019 defines BIM as: :''Use of a shared digital representation of a built asset to facilitate design, construction and operation processes to form a reliable basis for decisions.'' The US National Building Information Model Standard Project Committee has the following definition: :''Building Information Modeling (BIM) is a digital representation of physical and functional characteristics of a facility. A BIM is a shared knowledge resource for information about a facility forming a reliable basis for decisions during its life-cycle; defined as existing from earliest conception to demolition.'' Traditional building design was largely reliant upon two-dimensional technical drawings (plans, elevations, sections, etc). Building information modeling extends the three primary spatial dimensions (width, height and depth), incorporating information about time (so-called 4D BIM), cost (5D BIM), asset management, sustainability, etc. BIM therefore covers more than just geometry. It also covers spatial relationships, geospatial information, quantities and properties of building components (for example, manufacturers' details), and enables a wide range of collaborative processes relating to the built asset from initial planning through to construction and then throughout its operational life. BIM authoring tools present a design as combinations of "objects" – vague and undefined, generic or product-specific, solid shapes or void-space oriented (like the shape of a room), that carry their geometry, relations, and attributes. BIM applications allow extraction of different views from a building model for drawing production and other uses. These different views are automatically consistent, being based on a single definition of each object instance. BIM software also defines objects parametrically; that is, the objects are defined as parameters and relations to other objects so that if a related object is amended, dependent ones will automatically also change. Each model element can carry attributes for selecting and ordering them automatically, providing cost estimates as well as material tracking and ordering. For the professionals involved in a project, BIM enables a virtual information model to be shared by the design team (
architect An architect is a person who plans, designs and oversees the construction of buildings. To practice architecture means to provide services in connection with the design of buildings and the space within the site surrounding the buildings that h ...

landscape architect A landscape architect is a person who is educated in the field of landscape architecture Landscape architecture is the design of outdoor areas, landmarks, and structures to achieve environmental, social-behavioural, or aesthetic outcomes. It i ...
surveyor Surveying or land surveying is the technique, profession, art, and science of determining the terrestrial or three-dimensional positions of points and the distances and angles between them. A land surveying professional is called a land survey ...

civil Civil may refer to: *Civic virtue, or civility *Civil action, or lawsuit *Civil affairs *Civil and political rights *Civil disobedience *Civil engineering *Civil (journalism), a platform for independent journalism *Civilian, someone not a member ...
structural A structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized. Material structures include man-made objects such as buildings and machines and natural objects such as ...
and building services
engineer Engineers, as practitioners of engineering Engineering is the use of scientific principles to design and build machines, structures, and other items, including bridges, tunnels, roads, vehicles, and buildings. The discipline of enginee ...

s, etc.), the
main contractor A general contractor, main contractor or prime contractor is responsible for the day-to-day oversight of a construction site, management of vendors and trades, and the communication of information to all involved parties throughout the course of a ...
subcontractor A subcontractor is an individual or (in many cases) a business Business is the activity of making one's living or making money by producing or buying and selling products (such as goods and services). Simply put, it is "any activity or ent ...
s, and the owner/operator. Each professional adds discipline-specific data to the shared model - commonly, a 'federated' model which combines several different disciplines' models into one. Combining models enables visualisation of all models in a single environment, better coordination and development of designs, enhanced clash avoidance and detection, and improved time and cost decision-making.

Usage throughout the project life-cycle

Use of BIM goes beyond the planning and design phase of the project, extending throughout the building life cycle. The supporting processes of
building lifecycle management Building lifecycle management or BLM is the adaptation of product lifecycle management (PLM)-like techniques to the design, construction, and management of buildings. Building lifecycle management requires accurate and extensive building informatio ...
cost management Cost accounting is defined as "a systematic set of procedures for recording and reporting measurements of the cost of manufacturing goods and performing services in the aggregate and in detail. It includes methods for recognizing, classifying, all ...
construction management Construction management (CM) is a professional service that uses specialized, project management Project management is the process of leading the work of a team A team is a group of individuals (human or non-human) working together to achie ...
project management Project management is the process of leading the work of a team A team is a group of individuals (human or non-human) working together to achieve their goal A goal is an idea In common usage and in philosophy Philosophy (f ...
, facility operation and application in
green building Green building (also known as green construction or sustainable building) refers to both a structure and the application of processes that are environmentally responsible Ecosophy or ecophilosophy (a portmanteau of ecological philosophy) is a ...

green building
. A 'Common Data Environment' (CDE) is defined in ISO 19650 as an: :''Agreed source of information for any given project or asset, for collecting, managing and disseminating each information container through a managed process.'' A CDE workflow describes the processes to be used while a CDE solution can provide the underlying technologies. A CDE is used to share data across a project or asset lifecycle, supporting collaboration across a whole project team (the meaning overlaps with
enterprise content management #REDIRECT Enterprise content management#REDIRECT Enterprise content management Enterprise content management (ECM) extends the concept of content management by adding a timeline for each content (media), content item and, possibly, enforcing proces ...
, ECM, but with a greater focus on BIM issues).

Management of building information models

Building information models span the whole concept-to-occupation time-span. To ensure efficient management of information processes throughout this span, a BIM manager might be appointed. The BIM manager is retained by a design build team on the client's behalf from the pre-design phase onwards to develop and to track the object-oriented BIM against predicted and measured performance objectives, supporting multi-disciplinary building information models that drive analysis, schedules, take-off and logistics. Companies are also now considering developing BIMs in various levels of detail, since depending on the application of BIM, more or less detail is needed, and there is varying modeling effort associated with generating building information models at different levels of detail.

BIM in construction management

Participants in the building process are constantly challenged to deliver successful projects despite tight budgets, limited manpower, accelerated schedules, and limited or conflicting information. The significant disciplines such as
architectural Architecture (Latin ''architectura ''Architectura: Zeitschrift für Geschichte der Baukunst'' is a biannual peer-reviewed Peer review is the evaluation of work by one or more people with similar competencies as the producers of the wo ...
structural A structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized. Material structures include man-made objects such as buildings and machines and natural objects such as ...
and MEP designs should be well-coordinated, as two things can’t take place at the same place and time. BIM additionally is able to aid in collision detection, identifying the exact location of discrepancies. The BIM concept envisages virtual construction of a facility prior to its actual physical construction, in order to reduce uncertainty, improve safety, work out problems, and simulate and analyze potential impacts. Sub-contractors from every trade can input critical information into the model before beginning construction, with opportunities to pre-fabricate or pre-assemble some systems off-site. Waste can be minimised on-site and products delivered on a just-in-time basis rather than being stock-piled on-site. Quantities and shared properties of materials can be extracted easily. Scopes of work can be isolated and defined. Systems, assemblies and sequences can be shown in a relative scale with the entire facility or group of facilities. BIM also prevents errors by enabling conflict or 'clash detection' whereby the computer model visually highlights to the team where parts of the building (e.g.:structural frame and building services pipes or ducts) may wrongly intersect.

BIM in facility operation

BIM can bridge the information loss associated with handling a project from design team, to construction team and to building owner/operator, by allowing each group to add to and reference back to all information they acquire during their period of contribution to the BIM model. This can yield benefits to the facility owner or operator. For example, a building owner may find evidence of a leak in his building. Rather than exploring the physical building, he may turn to the model and see that a water
valve A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries A slurry composed of glass beads in silicone oil flowing down an inclined plane A slurry is a mix ...

is located in the suspect location. He could also have in the model the specific valve size, manufacturer, part number, and any other information ever researched in the past, pending adequate computing power. Such problems were initially addressed by Leite and Akinci when developing a vulnerability representation of facility contents and threats for supporting the identification of vulnerabilities in building emergencies. Dynamic information about the building, such as sensor measurements and control signals from the building systems, can also be incorporated within BIM software to support analysis of building operation and maintenance. There have been attempts at creating information models for older, pre-existing facilities. Approaches include referencing key metrics such as the
Facility Condition Index The facility condition index (FCI) is used in facilities management to provide a benchmark to compare the relative condition of a group of facilities. The FCI is primarily used to support asset management initiatives of federal, state, and local ...
(FCI), or using 3D laser-scanning surveys and
photogrammetry Photogrammetry is the science and technology of obtaining reliable information about physical objects and the environment through the process of recording, measuring and interpreting photographic images and patterns of electromagnetic radiant ima ...
techniques (separately or in combination) or digitizing traditional building surveying methodologies by using mobile technology to capture accurate measurements and operation-related information about the asset that can be used as the basis for a model. Trying to model a building constructed in, say 1927, requires numerous assumptions about design standards, building codes, construction methods, materials, etc., and is, therefore, more complex than building a model during design. One of the challenges to the proper maintenance and management of existing facilities is understanding how BIM can be utilized to support a holistic understanding and implementation of
building management Building management (in the UK) is a discipline that comes under the umbrella of facility management. Hard services usually relate to physical, structural services such as fire alarm systems, lifts, and so on whereas soft services allude to cleaning ...
practices and “
cost of ownership Total cost of ownership (TCO) is a financial estimate intended to help buyers and owners determine the direct and indirect costs Indirect costs are costs that are not directly accountable to a cost object A cost object is a term used primarily i ...
” principles that support the full
product lifecycle In industry, product lifecycle management (PLM) is the process of managing the entire lifecycle of a product from its inception through the engineering, design, and manufacture, as well as the service and disposal of manufactured products. PLM ...
of a building.  An
American National Standard The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of Standardization, voluntary consensus standards for products, services, processes, systems, and personnel in the United Sta ...
entitled ''APPA 1000 – Total Cost of Ownership for Facilities Asset Management'' incorporates BIM to factor in a variety of critical requirements and costs over the life-cycle of the building, including but not limited to: replacement of energy, utility, and safety systems; continual maintenance of the building exterior and interior and replacement of materials; updates to design and functionality; and recapitalization costs.

BIM in green building

BIM in
green building Green building (also known as green construction or sustainable building) refers to both a structure and the application of processes that are environmentally responsible Ecosophy or ecophilosophy (a portmanteau of ecological philosophy) is a ...

green building
, or "green BIM", is a process that can help architecture, engineering and construction firms to improve sustainability in the built environment. It can allow architects and engineers to integrate and analyze environmental issues in their design over the
life cycle Life cycle, life-cycle, or lifecycle may refer to: Science and academia *Biological life cycle, the sequence of life stages that an organism undergoes from birth to reproduction ending with the production of the offspring *Life-cycle hypothesis, ...
of the asset.

International developments



China began its exploration on informatisation in 2001. The Ministry of Construction announced BIM was as the key application technology of informatisation in ''"Ten new technologies of construction industry"'' (by 2010). The Ministry of Science and Technology (MOST) clearly announced BIM technology as a national key research and application project in ''"12th Five-Year" Science and Technology Development Planning.'' Therefore, the year 2011 was described as ''"The First Year of China's BIM"''.

Hong Kong

Hong Kong Housing Authority The Hong Kong Housing Authority (HA) is the main provider of public housing in Hong Kong. It was established in April 1973 under the Housing Ordinance and is an agency Agency may refer to: * a governmental or other institution Institutio ...
set a target of full BIM implementation in 2014/2015. BuildingSmart Hong Kong was inaugurated in Hong Kong SAR in late April 2012. The
Government of Hong Kong The Government of the Hong Kong Special Administrative Region of the People's Republic of China, commonly known as the Hong Kong Government or HKSAR Government, refers to the executive authorities of Hong Kong Hong Kong (; , ), offici ...
mandates the use of BIM for all government projects over HK$30M since 1 January 2018.


In India BIM is also known as VDC: Virtual Design and Construction. Due to its population and economic growth, India has an expanding construction market. In spite of this, BIM usage was reported by only 22% of respondents to a 2014 survey. In 2019, government officials said BIM could help save up to 20% by shortening construction time, and urged wider adoption by infrastructure ministries.


The Iran Building Information Modeling Association (IBIMA) was founded in 2012 by professional engineers from five universities in Iran, including the Civil and Environmental Engineering Department at Amirkabir University of Technology. While it is not currently active, IBIMA aims to share knowledge resources to support construction engineering management decision-making.


BIM implementation is targeted towards BIM Stage 2 by the year 2020 led by the Construction Industry Development Board (CIDB Malaysia). Under the Construction Industry Transformation Plan (CITP 2016-2020), it is hoped more emphasis on technology adoption across the project life-cycle will induce higher productivity.


The Building and Construction Authority (BCA) has announced that BIM would be introduced for architectural submission (by 2013), structural and M&E submissions (by 2014) and eventually for plan submissions of all projects with gross floor area of more than 5,000 square meters by 2015. The BCA Academy is training students in BIM.


The Ministry of Land, Infrastructure and Transport (MLIT) has announced "Start of BIM pilot project in government building and repairs" (by 2010). Japan Institute of Architects (JIA) released the BIM guidelines (by 2012), which showed the agenda and expected effect of BIM to architects.

South Korea

Small BIM-related seminars and independent BIM effort existed in South Korea even in the 1990s. However, it was not until the late 2000s that the Korean industry paid attention to BIM. The first industry-level BIM conference was held in April 2008, after which, BIM has been spread very rapidly. Since 2010, the Korean government has been gradually increasing the scope of BIM-mandated projects. McGraw Hill published a detailed report in 2012 on the status of BIM adoption and implementation in South Korea.

United Arab Emirates

Dubai Municipality Dubai Municipality ( ar, بلدية دبي) is the municipal body with jurisdiction Jurisdiction (from Latin Latin (, or , ) is a classical language A classical language is a language A language is a structured system of com ...

Dubai Municipality
issued a circular (196) in 2014 mandating BIM use for buildings of a certain size, height or type. The one page circular initiated strong interest in BIM and the market responded in preparation for more guidelines and direction. In 2015 the Municipality issued another circular (207) titled 'Regarding the expansion of applying the (BIM) on buildings and facilities in the emirate of Dubai' which made BIM mandatory on more projects by reducing the minimum size and height requirement for projects requiring BIM. This second circular drove BIM adoption further with several projects and organizations adopting UK BIM standards as best practice. In 2016, the UAE's Quality and Conformity Commission set up a BIM steering group to investigate statewide adoption of BIM.



Austrian standards for digital modeling are summarized in the ÖNORM A 6241, published on March 15, 2015. The ÖNORM A 6241-1 (BIM Level 2), which replaced the ÖNORM A 6240-4, has been extended in the detailed and executive design stages, and corrected in the lack of definitions. The ÖNORM A 6241-2 (BIM Level 3) includes all the requirements for the BIM Level 3 (iBIM).

Czech Republic

The Czech BIM Council, established in May 2011, aims to implement BIM methodologies into the Czech building and designing processes, education, standards and legislation.


In Estonia digital construction cluster (Digitaalehituse Klaster) was formed in 2015 to develop BIM solutions for the whole life-cycle of construction. The strategic objective of the cluster is to develop an innovative digital construction environment as well as VDC
new product development In business Business is the activity of making one's living or making money by producing or buying and selling products (such as goods and services). Simply put, it is "any activity or enterprise entered into for profit." Having a busines ...
, Grid and e-construction portal to increase the international competitiveness and sales of Estonian businesses in the construction field. The cluster is equally co-funded by European Structural and Investment Funds through Enterprise Estonia and by the members of the cluster with a total budget of 600 000 euros for the period 2016-2018.


In France, a Building transition digital plan - French acronym PTNB - has been created (mandated since 2015 to 2017 and under several ministries). There is also the French arm of
buildingSMART buildingSMART, formerly the International Alliance for Interoperability Interoperability is a characteristic of a product or system, whose interfaces are completely understood, to work with other products or systems, at present or in the future, ...
, called Mediaconstruct (existing since 1989).


In December 2015, the German minister for transport
Alexander Dobrindt Alexander Dobrindt (born 7 June 1970) is a German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citi ...
announced a timetable for the introduction of mandatory BIM for German road and rail projects from the end of 2020. Speaking in April 2016, he said digital design and construction must become standard for construction projects in Germany, with Germany two to three years behind The Netherlands and the UK in aspects of implementing BIM.


In November 2017, Ireland's Department for Public Expenditure and Reform launched a strategy to increase use of digital technology in delivery of key public works projects, requiring the use of BIM to be phased in over the next four years.


Through the new D.l. 50, in April 2016 Italy has included into its own legislation several European directives including 2014/24/EU on Public Procurement. The decree states among the main goals of public procurement the "rationalization of designing activities and of all connected verification processes, through the progressive adoption of digital methods and electronic instruments such as Building and Infrastructure Information Modelling". A norm in 8 parts is also being written to support the transition: UNI 11337-1, UNI 11337-4 and UNI 11337-5 were published in January 2017, with five further chapters to follow within a year. In early 2018 the Italian Ministry of Infrastructure and Transport issued a decree (DM 01/12/17) creating a governmental BIM Mandate compelling public client organisations to adopt a digital approach by 2025, with an incremental obligation which will start on 1 January 2019.


Lithuania is moving towards adoption of BIM infrastructure by founding a public body "Skaitmeninė statyba" (Digital Construction), which is managed by 13 associations. Also, there is a BIM work group established by Lietuvos Architektų Sąjunga (a Lithuanian architects body). The initiative intends Lithuania to adopt BIM, Industry Foundation Classes (IFC) and National Construction Classification as standard. An international conference "Skaitmeninė statyba Lietuvoje" (Digital Construction in Lithuania) has been held annually since 2012.

The Netherlands

On 1 November 2011, the Rijksgebouwendienst, the agency within the Dutch Ministry of Housing, Spatial Planning and the Environment that manages government buildings, introduced the Rgd BIM Standard, which it updated on 1 July 2012.


In Norway BIM has been used increasingly since 2008. Several large public clients require use of BIM in open formats (IFC) in most or all of their projects. The Government Building Authority bases its processes on BIM in open formats to increase process speed and quality, and all large and several small and medium-sized contractors use BIM. National BIM development is centred around the local organisation, buildingSMART Norway which represents 25% of the Norwegian construction industry.


BIMKlaster (BIM Cluster) is a non-governmental, non-profit organisation established in 2012 with the aim of promoting BIM development in Poland. In September 2016, the Ministry of Infrastructure and Construction began a series of expert meetings concerning the application of BIM methodologies in the construction industry.


Created in 2015 to promote the adoption of BIM in Portugal and its normalisation, the Technical Committee for BIM Standardisation, CT197-BIM, has created the first strategic document for construction 4.0 in Portugal, aiming to align the country's industry around a common vision, integrated and more ambitious than a simple technology change.


The Russian government has approved a list of the regulations that provide the creation of a legal framework for the use of information modeling of buildings in construction and encourages the use of BIM in government projects.


The BIM Association of Slovakia, "BIMaS", was established in January 2013 as the first Slovak professional organisation focused on BIM. Although there are neither standards nor legislative requirements to deliver projects in BIM, many architects, structural engineers and contractors, plus a few investors are already applying BIM. A Slovak implementation strategy created by BIMaS and supported by the Chamber of Civil Engineers and Chamber of Architects has yet to be approved by Slovak authorities due to their low interest in such innovation.


A July 2015 meeting at Spain’s Ministry of Infrastructure inisterio de Fomentolaunched the country’s national BIM strategy, making BIM a mandatory requirement on public sector projects with a possible starting date of 2018. Following a February 2015 BIM summit in Barcelona, professionals in Spain established a BIM commission (ITeC) to drive the adoption of BIM in Catalonia.


Since 2009 through the initiative of buildingSmart Switzerland, then 2013, BIM awareness among a broader community of engineers and architects was raised due to the open competition for
Basel , french: link=no, Bâlois(e), it, Basilese , neighboring_municipalities= Allschwil , neighboring_municipalities= Baselland (BL), Binningen, Switzerland, Binningen, Buschwiller (FR-68), Hégenheim (FR-68), Neuwiller (FR-68), Oberwil, Basel- ...

's Felix Platter Hospital where a BIM coordinator was sought. BIM has also been a subject of events by the Swiss Society for Engineers and Architects, SIA.

United Kingdom

In May 2011 UK Government Chief Construction Adviser
Paul Morrell Paul Dring Morrell (born 28 February 1948) is an English chartered quantity surveyor, former senior partner of Davis Langdon, and from November 2009 to November 2012 the UK Government's first Chief Construction Adviser to UK Government, Chief ...

Paul Morrell
called for BIM adoption on UK government construction projects. Morrell also told construction professionals to adopt BIM or be "Betamaxed out". In June 2011 the UK government published its BIM strategy, announcing its intention to require collaborative 3D BIM (with all project and asset information, documentation and data being electronic) on its projects by 2016. Initially, compliance would require building data to be delivered in a vendor-neutral ' COBie' format, thus overcoming the limited interoperability of BIM software suites available on the market. The UK Government BIM Task Group led the government's BIM programme and requirements, including a free-to-use set of UK standards and tools that defined 'level 2 BIM'. In April 2016, the UK Government published a new central web portal as a point of reference for the industry for 'level 2 BIM'. The work of the BIM Task Group now continues under the stewardship of the
Cambridge Cambridge ( ) is a university city and the county town In the United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain,Usage is mixed. The Guardian' and Telegraph' ...

Centre for Digital Built Britain The Centre for Digital Built Britain (CDBB) is partnership between the Cambridge University, University of Cambridge and UK's Department for Business, Energy and Industrial Strategy, Department for Business, Energy and Industry Strategy (BEIS). CD ...
(CDBB), announced in December 2017 and formally launched in early 2018. Outside of government, industry adoption of BIM from 2016 has been led by the UK BIM Alliance, an independent, not-for-profit, collaboratively-based organisation formed to champion and enable the implementation of BIM, and to connect and represent organisations, groups and individuals working towards digital transformation of the UK's built environment industry. The UK BIM Alliance's executive team directs activities in three core areas: engagement, implementation and operations (internal support and secretariat functions). In November 2017, the UK BIM Alliance merged with the UK chapter of BuildingSMART. In October 2019, CDBB, the UK BIM Alliance and the
BSI Group The British Standards Institution (BSI) is the national standards body of the United Kingdom. BSI produces technical standard A technical standard is an established norm (social), norm or requirement for a repeatable technical task which is ap ...
launched the UK BIM Framework. Superseding the BIM levels approach, the framework describes an overarching approach to implementing BIM in the UK, integrating the international ISO 19650 series of standards into UK processes and practice.
National Building Specification NBS (National Building Specification) is a UK-based business providing construction Construction is a general term meaning the and to form , , or ,"Construction" def. 1.a. 1.b. and 1.c. ''Oxford English Dictionary'' Second Edition on CD-RO ...
(NBS) has published research into BIM adoption in the UK since 2011, and in 2020 published its 10th annual BIM report. In 2011, 43% of respondents had not heard of BIM; in 2020 73% said they were using BIM.

North America


Several organizations support BIM adoption and implementation in Canada: the Canada BIM Council (CANBIM, founded in 2008), the Institute for BIM in Canada, and buildingSMART Canada (the Canadian chapter of
buildingSMART buildingSMART, formerly the International Alliance for Interoperability Interoperability is a characteristic of a product or system, whose interfaces are completely understood, to work with other products or systems, at present or in the future, ...

United States

Associated General Contractors of America The Associated General Contractors of America (AGC) is a trade association A trade association, also known as an industry trade group, business association, sector association or industry body, is an organization founded and funded by businesses ...
and US contracting firms have developed various working definitions of BIM that describe it generally as: :''an object-oriented building development tool that utilizes 5-D modeling concepts, information technology and software interoperability to design, construct and operate a building project, as well as communicate its details.'' Although the concept of BIM and relevant processes are being explored by contractors, architects and developers alike, the term itself has been questioned and debated with alternatives including Virtual Building Environment (VBE) also considered. Unlike some countries such as the UK, the US has not adopted a set of national BIM guidelines, allowing different systems to remain in competition. In 2021, the
National Institute of Building Sciences The National Institute of Building Sciences is a non-profit, non-governmental organization that brings together representatives of government, the professions, industry, labor and consumer interests, and regulatory agencies to focus on the identifi ...
(NIBS) looked at applying UK BIM experiences to developing shared US BIM standards and processes. The US National BIM Standard had largely been developed through volunteer efforts; NIBS aimed to create a national BIM programme to drive effective adoption at a national scale. BIM is seen to be closely related to
Integrated Project DeliveryIntegrated project delivery (IPD) is a construction project delivery method that seeks efficiency and involvement of all participants (people, systems, business structures and practices) through all phases of design, fabrication, and construction. IP ...
(IPD) where the primary motive is to bring the teams together early on in the project. A full implementation of BIM also requires the project teams to collaborate from the inception stage and formulate model sharing and ownership contract documents. The
American Institute of Architects The American Institute of Architects (AIA) is a professional organization for architect An architect is a person who plans, designs and oversees the construction of buildings. To practice architecture means to provide services in connection ...
has defined BIM as "a model-based technology linked with a database of project information", and this reflects the general reliance on database technology as the foundation. In the future, structured text documents such as
specifications A specification often refers to a set of documented requirements to be satisfied by a material, design, product, or service. A specification is often a type of technical standard. There are different types of technical or engineering specificatio ...
may be able to be searched and linked to regional, national, and international standards.



BIM has the potential to play a vital role in the Nigerian AEC sector. In addition to its potential clarity and transparency, it may help promote standardization across the industry. For instance, Utiome suggests that, in conceptualizing a BIM-based knowledge transfer framework from industrialized economies to urban construction projects in developing nations, generic BIM objects can benefit from rich building information within specification parameters in product libraries, and used for efficient, streamlined design and construction. Similarly, an assessment of the current 'state of the art' by Kori found that medium and large firms were leading the adoption of BIM in the industry. Smaller firms were less advanced with respect to process and policy adherence. There has been little adoption of BIM in the built environment due to construction industry resistance to changes or new ways of doing things. The industry is still working with conventional 2D CAD systems in services and structural designs, although production could be in 3D systems. There is virtually no utilisation of 4D and 5D systems. BIM Africa Initiative, primarily based in Nigeria, is a non-profit institute advocating the adoption of BIM across Africa. Since 2018, it has been engaging with professionals and the government towards the digital transformation of the built industry. Produced annually by its research and development committee, the African BIM Report gives an overview of BIM adoption across the African continent.

South Africa

The South African BIM Institute, established in May 2015, aims to enable technical experts to discuss digital construction solutions that can be adopted by professionals working within the construction sector. Its initial task was to promote the SA BIM Protocol. There are no mandated or national best practice BIM standards or protocols in South Africa. Organisations implement company-specific BIM standards and protocols at best (there are isolated examples of cross-industry alliances).



In February 2016, Infrastructure Australia recommended: "Governments should make the use of Building Information Modelling (BIM) mandatory for the design of large-scale complex infrastructure projects. In support of a mandatory rollout, the Australian Government should commission the Australasian Procurement and Construction Council, working with industry, to develop appropriate guidance around the adoption and use of BIM; and common standards and protocols to be applied when using BIM.”

New Zealand

In 2015, many projects in the rebuilding of
Christchurch Christchurch ( ; mi, Ōtautahi) is the largest city in the South Island of New Zealand and the seat of the Canterbury, New Zealand, Canterbury Region. Christchurch lies on the South Island's east coast, just north of Banks Peninsula on Pegas ...

were being assembled in detail on a computer using BIM well before workers set foot on the site. The New Zealand government started a BIM acceleration committee, as part of a productivity partnership with the goal of 20 per cent more efficiency in the construction industry by 2020.

Future potential

BIM is a relatively new technology in an industry typically slow to adopt change. Yet many early adopters are confident that BIM will grow to play an even more crucial role in building documentation. Proponents claim that BIM offers: #Improved visualization #Improved productivity due to easy retrieval of information #Increased coordination of construction documents #Embedding and linking of vital information such as vendors for specific materials, location of details and quantities required for estimation and tendering #Increased speed of delivery #Reduced costs BIM also contains most of the data needed for
building performance Building performance is an attribute of a building A building, or edifice, is a structure with a roof and walls standing more or less permanently in one place, such as a house A house is a single-unit residential building, which may range i ...
analysis. The building properties in BIM can be used to automatically create the input file for
building performance simulation Building performance simulation (BPS) is the replication of aspects of building performance using a computer-based, mathematical model created on the basis of fundamental physical principles and sound engineering practice. The objective of buildin ...

building performance simulation
and save a significant amount of time and effort. Moreover, automation of this process reduce errors and mismatches in the building performance simulation process.

Purposes or dimensionality

Some purposes or uses of BIM may be described as 'dimensions'. However, there is little consensus on definitions beyond 5D, and some organisations dismiss the term; the UK
Institution of Structural Engineers The Institution of Structural Engineers is a professional body for structural engineering Structural engineering is a sub-discipline of in which s are trained to design the 'bones and muscles' that create the form and shape of man-made struc ...
, for example, says "cost (5D) is not really a 'dimension'."


4D BIM, an acronym for 4-dimensional building information modeling, refers to the intelligent linking of individual 3D CAD components or assemblies with time- or scheduling-related information. The term 4D refers to the
fourth dimension Fourth dimension may refer to: Science * Time in physics Time in physics is defined by its measurement ' Measurement is the number, numerical quantification (science), quantification of the variable and attribute (research), attributes of an obj ...
time Time is the continued sequence of existence and event (philosophy), events that occurs in an apparently irreversible process, irreversible succession from the past, through the present, into the future. It is a component quantity of various me ...
, i.e. 3D plus time. 4D modelling enables project participants (architects, designers, contractors, clients) to plan, sequence the physical activities, visualise the critical path of a series of events, mitigate the risks, report and monitor progress of activities through the lifetime of the project. 4D BIM enables a sequence of events to be depicted visually on a time line that has been populated by a 3D model, augmenting traditional
Gantt chart A Gantt chart is a type of bar chart A bar chart or bar graph is a chart or graph that presents categorical data In statistics Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presenta ...

Gantt chart
s and critical path (CPM) schedules often used in project management. Construction sequences can be reviewed as a series of problems using 4D BIM, enabling users to explore options, manage solutions and optimize results. As an advanced construction management technique, it has been used by project delivery teams working on larger projects. 4D BIM has traditionally been used for higher end projects due to the associated costs, but technologies are now emerging that allow the process to be used by laymen or to drive processes such as manufacture.


5D BIM, an acronym for 5-dimensional building information modeling refers to the intelligent linking of individual 3D components or assemblies with time schedule (4D BIM) constraints and then with cost-related information. 5D models enable participants to visualise construction progress and related costs over time. This BIM-centric project management technique has potential to improve management and delivery of projects of any size or complexity. In June 2016,
McKinsey & Company McKinsey & Company is a management consulting firm, founded in 1926 by University of Chicago professor James O. McKinsey, that advises on strategic management to corporations, governments, and other organizations. McKinsey is the oldest and large ...
identified 5D BIM technology as one of five big ideas poised to disrupt construction. It defined 5D BIM as "a five-dimensional representation of the physical and functional characteristics of any project. It considers a project’s time schedule and cost in addition to the standard spatial design parameters in 3-D."


6D BIM, an acronym for 6-dimensional building information modeling, refers to the intelligent linking of individual 3D components or assemblies with all aspects of project life-cycle management information. The 6D model is usually delivered to the owner when a construction project is finished. The "As-Built" BIM model is populated with relevant building component information such as product data and details, maintenance/operation manuals, cut sheet specifications, photos, warranty data, web links to product online sources, manufacturer information and contacts, etc. This database is made accessible to the users/owners through a customized proprietary web-based environment. This is intended to aid facilities managers in the operation and maintenance of the facility. The term is less commonly used in the UK and has been replaced with reference to the Asset Information Requirements (AIR) and an Asset Information Model (AIM) as specified in PAS1192-3:2014.

See also

* BIM Wash * Data model * Design computing * Digital twin (the physical manifestation instrumented and connected to the model) * GIS * Lean construction * Macro BIM * OpenStreetMap * Pre-fire planning * System information modelling * Whole Building Design Guide


Further reading

* * * Kensek, Karen (2014). ''Building Information Modeling'', Routledge. * Kensek, Karen and Noble, Douglas (2014). ''Building Information Modeling: BIM in Current and Future Practice'', Wiley. * * Krygiel, Eddy and Nies, Brad (2008). ''Green BIM: Successful Sustainable Design with Building Information Modeling'', Sybex. * Kymmell, Willem (2008). ''Building Information Modeling: Planning and Managing Construction Projects with 4D CAD and Simulations'', McGraw-Hill Professional. * Lévy, François (2011). ''BIM in Small-Scale Sustainable Design'', Wiley. * Smith, Dana K. and Tardif, Michael (2009). ''Building Information Modeling: A Strategic Implementation Guide for Architects, Engineers, Constructors, and Real Estate Asset Managers'', Wiley. * Underwood, Jason, and Isikdag, Umit (2009). ''Handbook of Research on Building Information Modeling and Construction Informatics: Concepts and Technologies'', Information Science Publishing. * Weygant, Robert S. (2011) ''BIM Content Development: Standards, Strategies, and Best Practices'', Wiley. {{HVAC Building information modeling, Data modeling Computer-aided design Construction Architecture Building engineering