The Ultimate BIM Knowledge Hub

Your one-stop resource for BIM electrical.
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Dictionary
Jarek Wityk

Volume strategy

ELI5-S1: BIM Basics E10: Volume Strategy (spatial) explained Introduction Volume Strategy enables information management, spatial coordination, and concurrent engineering, ultimately fitting together like a complex 3D jigsaw puzzle, where each

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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

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Dictionary
Jarek Wityk

Digital Plan Of Work (DPoW)

Digital Plan Of Work (DPoW) forms a framework that supports informed and consistent decision making by project teams, at each work stage, helping to deliver agreed and reliable information. The

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Handover

After the project is completed, the Appointing Party expects to receive Asset Information Model (AIM) compliant with the Exchange Information Requirements (EIR).   The aim is to support the life

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Dictionary
Jarek Wityk

volume

ELI5-S1: BIM Basics E10: Volume Strategy (spatial) explained a term defined by BS 1192:2007 means a spatial subdivision of a project to allow multiple people to work on Project Information

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acceptance criteria

evidence required for considering that requirements have been fulfilled [cited from ISO 19650-2:2018(en), 3.1.1.1] Information issued via the Common Data Environment (CDE) must comply with Project Information Requirements (PIR) outlined

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Miller’s law

Argument introduced by Miller, G. A., suggests that the number of objects an average human can hold in short-term memory is 7 ± 2.[1] From a practical standpoint, this means

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risk appetite

amount and type of risk that an organization is willing to pursue or retain [cited from ISO 19650-5:2020(en), 3.5]

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Dictionary
Jarek Wityk

Work in Progress (WIP)

A supply-chain management term describing partially finished information awaiting completion. In other words, the Information model is not to be used by any other project party. Before progression onto the next

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Model View Definition (MVD)

One or more specific information exchange requirements may necessitate the need for a model view definition (MVD). A machine-readable representation of MVDs is required when using them in software development.

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Contract Particulars

Contract Particulars refer to the document outlining the Framework Agreement’s specific core terms, which may include but are not limited to the Pricing Schedule, Authorised Officer, Contract Manager, Key Personnel,

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Co-Location

Assembling the entire BIM design and construction team in a single location (“Co-location”) enables almost instant and direct communication and coordination among team members. This Co-location of all team members

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Portable document format (PDF)

It’s a versatile file format developed by Adobe that allows people to easily present and exchange documents – regardless of the software, hardware, or operating systems used by anyone who

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Instructions
Jarek Wityk

LTF_Lighting-Fixture Circular

LTF_Lighting-Fixture_Luminaire-Circular vv22.1.1. Family For: Electrical Engineers, Bim Managers, Electrical Designers Setup: 10 – 30 minutes View Details ▼ Technical Details Released: Feb 9, 2025 Updated: Jul 5, 2025 Compatibility Notes:

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Gateway (Exclusive)

[XOR] When splitting, directs the sequence flow to one of the outgoing branches. When merging, it waits for one incoming branch to finish before starting the outgoing flow.[1] Symbol   

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Project BIM Coordinator

Responsible, during the design stages, for executing, managing and running clash detection of the federated Project Information Model (PIM), and federating and QA reviewing the Asset Information Model (AIM) for

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process

set of interrelated or interacting activities that transforms inputs into outputs [SOURCE: ISO 9000:2005, definition 3.4.1 (without notes)] ISO 14040:2006(en), 3.11 It is a PAS1192 term replaced by term ‘workflow’ in ISO

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Heating, Ventilation and Air-Conditioning (HVAC)

Heating, Ventilation and Air-Conditioning (HVAC). All necessary heating, ventilation air-conditioning and specialty equipment, including air distribution ducts for supply, return, and ventilation and exhaust ducts, including control system, registers, diffusers,

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inertia

In the context of BIM and Digital Construction, the term is referred to as institutional and personal inertia to change, one of the most common barriers to BIM implementation.

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Dictionary
Jarek Wityk

BS EN ISO IEC 27000:2020

Information technology – Security techniques – Information security management systems – Overview and vocabulary ISO 27000 is derived from the British Standard 7799, published in 1995 in three parts: BS-7799,

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Intermediate Event

An intermediate event is something that occurs between the beginning and end of a process. Triggers can be “caught” or “thrown” by intermediate events. [1] Symbol 1]     Silver, B. (2009).

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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

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TT system

A system having one point of the source of energy directly earthed, the exposedconductive-parts of the installation being connected to earth electrodes electrically independent of the earth electrodes of the

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Asset Information Requirements (AIR)

Term introduced by ISO 19650 set of standards is related to information required during the operation phase of an asset AIR define managerial, commercial and technical aspects of information production,

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How To
Jarek Wityk

Domestic PV sizing rule-of-thumb (RoT)

Domestic PV sizing rule-of-thumb (RoT) Grid-tied, focused on self-consumption UK rule-of-thumb (RoT) Peak Sun Hours (PSH): 3.5 summer, 2.0 spring/autumn, 1.0 winter For calc use Peak Sun Hours (PSH) =

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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.

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Cost Led Procurement

A procurement method introduced by Constructing Excellence and the Cabinet Office intended to allow industry to use its experience and knowledge to develop innovative solutions through leveraging design, materials, subcontracting, direct labour

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Ze

That part of the earth fault loop impedance which is external to the circuit under consideration. For the supply cable it will be the impedance external to the installation. For

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Project Information Manager

Responsible for extraction, review, coordination and reporting of data within the native and federated models as well as associated project databases throughout the project stages to ensure client and BEP

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BS ISO 21500:2012

Guidance on project management ISO 21500 describes guidelines for managing projects and processes in project management, including standards, methods, and processes. The standard is intended to align with related international

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minor change

change that does not affect the meaning, function or intended use NOTE 1 Definition applies to properties and groups of properties.NOTE 2 Examples of this type of change are new

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Blog
Jarek Wityk

PAS 1192 vs ISO 19650 terms

Quick reference guide In here you can find a quick reference guide with PAS1192 and ISO 19650 terminology comparison. PAS references (superseded) ISO References (current) Pre-contract BEP Pre-appointment BEP Post-contract

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Dictionary
Jarek Wityk

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,

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Contractor’s proposals (CP)

Contractor’s proposals (CP) in AEC industry refer to documentation prepared by tenderers for design and build projects or on a traditional contract where the bidder is to design specific parts

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quantity

property of a phenomenon, body, or substance, where the property has a magnitude that can be expressed by means of a number and a reference. for example a measure with

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Dictionary
Jarek Wityk

Archive

History of project information, such that any non-current published information in the published area should move into this area. New parties to the project will receive an invitation to join

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Information Delivery Manual (IDM)

information delivery manual (IDM) Documentation that captures the business process and specifies in detail the information that a user performing a particular role is required to provide at a particular

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attribute

Depending on the technology discussed, the term attribute can be treated as equivalent to a property or as a set of attributes, such as the number of elements in a

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Conditions of Satisfaction

An explicit description by a Customer of all the actual requirements that must be satisfied by the Performer in order for the Customer to feel that he or she received

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Project Information Model (PIM)

It is a term introduced in PAS 1192‑2: 2013 and ISO 19650 set of standards. It means any graphical or non-graphical information such as: Structured information, i.e.: schedules, costing and

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Business goals

Business goals drive organisational outcomes, helping to keep the focus on the company’s important short and long term priorities. The goals must be defined, understood, tracked, analysed, and measured to

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