The Ultimate BIM Knowledge Hub
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Data Management
ELI5
Clash Detection
Clash detection, coordination analysis and data checks shall be carried out by the BIM Coordinators against the latest shared models. The workflows involve a combination of visual and automated checks
2022-07-04
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Industrial Internet of Things (IIoT)
The industrial IoT (IIoT) forms an integral part of Industry 4.0, and smart manufacturing refers to interconnected sensors, and other input/output devices linked to manufacturing applications, supporting industrial automation and
2022-07-11
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information exchange
verb act of satisfying an information requirement (3.3.2) or part thereof [cited from ISO 19650-1:2018(en), 3.3.7]
2021-01-02
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Facility Data
The non-graphical information attached to objects in the Model that defines various characteristics of the object. Facility Data can include properties such as parametric values that drive physical sizes, material
2022-07-11
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Blog
BS8519 awareness of the changes
An email debate on whether BS 8519’s “dedicated cable support” rules really apply to central battery emergency lighting. We unpack the scope of BS 8519 vs BS 5266-1 and BS 7671, and what that means for segregation, containment and life-safety wiring on real projects.
2025-11-14
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Intermediate Event (Message/Catching)
A message intermediate event can be used to both send and receive messages. When used to “catch” the message, the event marker must be left empty. If the process was
2022-07-04
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Soil Thermal Resistivity
Relates to the ability of the soil, in which the cable is installed, to conduct heat energy away from the cable. The rating factor Cs is applied in cable sizing
2023-02-05
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Dictionary
jet
extinguishing medium, usually water, leaving a nozzle as a continuous stream, water spray, or waterfog (mist) BS 4422 2005 Each of these methods has its own advantages and is chosen
2023-12-05
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BS EN ISO 23386:2020
Building information modelling and other digital processes used in construction Methodology to describe, author and maintain properties in interconnected data dictionaries
2022-07-24
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How To
COBie data drop
COBie data drop Individual COBie data drops are the responsibility of Task Team BIM Managers, who must upload the required information containers in accordance with Exchange Information Requirements (EIR).The COBie
2022-10-15
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4D Modeling
4D Modelling also referred to as 4D BIM, when supported by existing planning techniques, can improve project delivery times and schedules. To make the gains possible, all project members must
2022-07-04
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plan of work
It is a project-specific “digitally checkable” framework set-up to ensure that the deliverables of all contributors are identified and appropriate to the decisions required at each work stage. The plan
2022-07-15
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Assignment matrix
Responsibility matrix [ISO19650] In ISO 19650 there is a principle to develop responsibility matrices to cover information management activities and information delivery. Responsibility matrix [PAS1192] The former is illustrated as
2022-07-27
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Supplier
In the construction industry, ‘supplier’ refers to a provider of services or goods. The supplier can provide goods or services directly to the ultimate client or another supplier. The publication
2022-07-27
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Model
An electronic, three-dimensional representation of built asset or facility elements with associated intelligentattribute data (“Facility Data”). A Model term used in PAS 1192 specification has been replaced by term ‘Information
2022-07-27
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built asset
individual or multiple buildings (e.g. a site or campus) or infrastructure (e.g. roads, railways, pipelines, dams, docks, etc.) built as part of a construction project or where the asset information
2022-07-15
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Post-contract BEP
This PAS 1192 term has been superseded by ISO 19650 term Post-appointment BEP. It is a BIM Execution Plan (BEP) which shall be re-submitted by the Lead Appointed Party and
2022-07-27
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Builders work in connection (BWIC)
Coordination of Builders work in connection to services i.e. openings in walls or floors for MEP Services It is anticipated that as a minimum, all builders work openings of 50x50mm
2022-07-04
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Geo-referencing
A BIM is said to be geo-referenced when the BIM is located with respect to one of the standard geographic survey coordinate grids established to represent locations on the Earth’s
2022-07-11
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specialization relation
relation between kinds of things that relates two concepts whereby the subtype concept is a more specific concept than the supertype concept and has all the aspects that define the
2022-07-11
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Quantity Surveyor (QS)
person who provides financial and contractual advice and services for planning, carrying out and completion (3.5.23) of construction works https://www.iso.org/obp/ui#iso:std:iso:6707:-2:ed-3:v1:en:term:3.8.25
2022-07-24
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third party
person or body that is recognized as being independent of the parties involved with the issues in question [1] Note 1 to entry: “Parties involved” are usually supplier (“first party”) and purchaser (“second party”). 1
2022-07-11
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Association Française de Normalisation (AFNOR)
Association Française de Normalisation Asociation French Normalization Organization Regulation
2022-07-24
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Workset
A workset is a collection of elements in a work shared Revit project. The purpose of worksets is to enable multiple users to work on the same project and facilitate
2022-07-04
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Dictionary
Junction Boxes
Junction Box Requirements in Electrical Installations To ensure compliance with BS 7671:2018+A2:2022, the following requirements apply when using junction boxes in electrical installations: 1. Compliance with BS EN 60670-22 Any
2025-03-15
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macro diffusion dynamics
adoption model which identifies three diffusion dynamics top-down, bottom-up and middle-out Macro-Diffusion Dynamics model v1.1 (full size, current version). Macro-BIM adoption: Conceptual structures http://bit.ly/BIMPaperA8
2022-07-24
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Responsibility matrix
a chart that describes the participation by various functions in completing tasks or deliverables [cited from ISO 19650-1:2018(en), 3.1.1] Responsibility matrix shall be developed to cover information management activities and
2022-07-27
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business process modelling notation (BPMN)
Business Process Modelling Notation (BPMN) is a flow chart method for modelling the steps of a planned business process from beginning to end. It is a critical component of Business
2022-07-04
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Harmonic
The presence of harmonic content in the line conductors of a three-phase and neutral circuit can give rise to excessive levels of load current in the neutral conductor.
2023-02-05
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Blog
Thomas Edison’s Pearl Street Station
Dynamos, Boilers, and the Costly Copper of Edison’s 1882 Pearl Street Station On September 4, 1882, Thomas Edison’s Pearl Street Station in New York City became the world’s first commercial
2025-06-07
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Management of duplicates
The procedure to remove duplicate properties shall be carried out on the relevant attributes. The management of duplicates cannot be fully automated. BS EN ISO 23386:2020
2022-07-24
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Final Circuit
A circuit connected directly to current-using equipment, or to a socket-outlets or other outlet points for the connection of such equipment.
2023-02-05
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Ground rating factor (Cc)
The rating factor Cc = 0.9 is applied to cable sizing calculations for cables installed in the ground (Installation Methods 70 to 73). See BS7671:2018,Appendix 4,Sections3,4 and 5.1.1.
2023-02-05
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Dictionary
client
actor (3.2.1) responsible for initiating a project and approving the brief [cited from ISO 19650-1:2018(en), 3.2.5] The UK BIM Alliance, responding to the inconsistency between the current guidance of CIC BIM Protocol,
2022-07-15
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System of systems
A system of systems is a collection of many different systems, each with its own characteristics. [1] System theory assumes that certain underlying concepts and principles are applicable to different
2022-07-11
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Unified Modelling Language (UML)
language to provide system (3.13) architects, software engineers, and software developers with toolsfor analysis, design, and implementation of software-based systems as well as for modelling businessand similar processesNote 1 to
2022-07-24
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consensus
general agreement, characterized by the absence of sustained opposition to substantial issues by any important part of the concerned interests and by a process that involves seeking to take into
2022-07-24
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system
interacting objects organized to achieve one or more stated purpose [SOURCE: ISO/IEC/IEEE 15288:2015, 4.1.46, modified — The words “combination of” at the beginninghave been removed; “elements” has been replaced by
2022-07-24
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Pre-contract BEP
On projects where ISO 19650 Framework has implemented a term, Pre-appointment BEP is used instead of the PAS 1192 term Pre-contract BEP. The meaning is the same, it communicates on
2022-07-27
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UK BIM Framework
The UK BIM Framework was developed by the UK BIM Alliance, BSI, and the Centre for Digital Built Britain associated with the Construction Industry Council (CIC) to implement international BIM
2022-07-04
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BS EN 17412‑1:2020
Building Information Modelling — Level of Information NeedPart 1: Concepts and principles
2022-07-15
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BIM thinking ahead
I decided to challenge myself and explore existing and emerging technologies in order to estimate what could we achieve during the next 30 years. The question is considered in terms
2021-12-10
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ontology
An ontology is a set of rules that make it possible to link data on a semantic level. Means the unstructured, semi-structured data can be read and encoded by computers.
2022-07-11
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Dictionary
PUBLISHED
Information accepted by the nominated party, in which case it will be suitable for tender or construction (2D model output only). Such that the ‘Published’ area should be maintained in
2022-07-11
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DWG
DWG (“drawing format”) is a binary file format licensed by Autodesk and used for storing two and limited three-dimensional design data and metadata. It is the native format for several
2022-07-11
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Residual Current Device (RCD)
AResidual Current Device (RCD) is amechanical switching device or association of devices intended to cause the opening of the contacts when the residual current* attains a given value under specified
2023-02-05
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BS EN ISO 19650-5:2020
Organization and digitization of information about buildings and civil engineering works, including building information modelling (BIM) Information management using building information modelling Part 5: Security-minded approach to information management
2022-07-24
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Blog
Cutting Geometry with Nested Void Families in Revit
1. Generic Host in the Face-Based Family When you are in the face-based family, create void, and Cut the Generic Host This setup essentially simulates the cutting action within the
2024-03-23
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American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE)
American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) is a professional organization that develops and promulgates system, measurement, and product engineering standards to the industry.1 1 The Massachusetts
2022-07-11
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Pool
A pool is a graphical representation of a collaboration participant. A pool serves as a container for the sequence flows that occur between activities (of a contained process). The sequence
2022-07-04
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