The Ultimate BIM Knowledge Hub
Your one-stop resource for BIM electrical.
Revit Guides
Data Management
ELI5
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

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) =

Quality Management and Standards
Most articles start with a definition of quality management and then dive deep into Quality Control (QC) and Quality Assurance (QA). In here I concentrate on the quality, value and

Emergency Lighting Standards and Regulations
BS 5266‑1:2025 – whats changed? Status & scope. The new edition was published on 29th and came into effect on 31 October 2025, withdrawing BS 5266-1:2016. It is intended to be

Exchange Information Requirements (EIR)
The Exchange Information Requirements (EIR) term introduced by BS EN 19650 replaces the PAS 1192 term Employer Information Requirements (EIR) on all projects where BS EN ISO 19650 compliance is
BS EN ISO 23387:2020
Building information modelling (BIM) — Data templates for construction objects used in the life cycle of built assets Concepts and principles

ISO 19650 Framework
The ISO 19650 framework is generally aimed for information management. The individual standards do not cover the whole area of quality management but instead point out to other standards suggesting
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
Rating factors
Rating factors are divided into the nominal rating of the circuit protective device (In) to determine theminimum current-carrying capacity (Iz) of a cable in a circuit. For example:Iz = In/(Ca
Target Value Design
Target Value Designs (TVD) focus is on reducing the cost of a project without reducing the quality of the end product or extending the timetable. The team sets a cost

UK BIM Framework (roadmap)
UK BIM Framework roadmap! Almost three years have passed since the first BS EN ISO19650-1 standard was published.A lot of work has been done; some people are upset about the
property
inherent or acquired feature of an item[SOURCE: BS ISO 6707-1:2017, 3.7.1.3] NOTE Examples include thermal efficiency, heat flow, sound reduction index and acoustic power level.PAS 14191:2020
identification
The “identification” is ISO 19650 term equivalent to PAS 1192 term ‘naming’
Global Trade Item Number (GTIN)
Global Trade Item Number (GTIN) identifier for trade items used to look up product information in a database GS1 [1] 1 Online Browsing Platform (OBP) [WWW Document], n.d. URL https://www.iso.org/obp/ui#search
BS ISO 44001:2017
Collaborative business relationship management systems Requirements and framework
Integrated Digital Delivery
History History’s Professor, Yuval Noah Harari, in his book Homo Sapiens reached a conclusion that humans developed an ability to transmit information about things that do not really exist (stories),
Cable k2s2
k2s2 its an Energy withstand of cable in A2s. For example,a cable with a withstand of 12 x 104 A2s, can sustain without permanentdamage,a fault current of 1,000 A for
smart building
The term “smart building” was originally introduced by the European Union in the Energy Performance of Buildings Directive (EPBD)[1] as one of the main enablers of the future of the built environment,

Sensitive Information
ELI5-S1 BIM Basics E16_Sensitive Information information, the loss, misuse or modification of which, or unauthorized access to, could:(a) adversely affect the privacy, welfare or safety of an individual or individuals;(b)
IDM standard
BS EN ISO 29481-1 Building information models – Information delivery manual (IDM) PD ISO/TS 12911:201
graphical
The PAS1192 term has been replaced by ISO19650 term ‘geometrical’ Geometrical is more appropriate to describe spatial positioning and relationships

BIM Functions
ELI5-S1 BIM Basics E17_BIM Functions Understanding BIM Functions: A Simple Guide for Beginners Building Information Modeling (BIM) is transforming the construction industry by enabling better collaboration, design precision, and efficient

Life Safety Generator
Life Safety Generator selection guide Copy If the secondary power supply is provided for firefighter’s lift, it must be capable of operating the firefighter’s lift at its full rated load
Scope
Bid response should include a scope management plan containing all the tasks necessary for successful project delivery. The plan shall define the implementation and verification of workflows. A project should
top management
person or group of people who directs and controls an organization at the highest level [cited from ISO 19650-5:2020(en), 3.14]
Resources Description Framework (RDF)
Resources Description Framework (RDF) major component of the semantic web as they provide a means for identifying resources with Namespace (NS)
systems thinking
System thinking is an approach to integration based on the idea that each component or part of a system acts differently when isolated from its environment and other parts of
Lean construction
Lean Construction is the method of project management aiming to reduce waste on a project and improving the efficiency and quality of produced work [1]. The aim to reduce overproduction,
Assignment
A request or offer resulting in a Reliable Promise and is ready to be placed on the Weekly Work Plan (WWP) for performance. An assignment must meet the characteristics for
Activity
An identifiable chunk of work with recognized prerequisites to begin and a recognized State of Completion – or Conditions of Satisfaction. Another way to look at an activity – establish
data dictionary
centralized repository of information about data such as meaning, relationships to other data, origin, usage and formatNote 1 to entry: The definition is from IBM Dictionary of Computing BS EN
BS EN ISO 16739-1:2020
Industry Foundation Classes (IFC) for data sharing in the construction and facility management industries Part 1: Data schema
digital built environment
The terminology such as digital built environment and smart asset management, often referred to as Digital Construction, encompasses multiple technologies and processes related to information or project management and the
Budget
The tender response for designing, constructing and operating the existing building and the additional extension shall include the project budget’s bid documentation. The budget must incorporate the total amount of
verification
confirmation, through the provision of objective evidence, that specified requirements have beenfulfilled [SOURCE: BS EN 17412‑1:2020] Verification is the process of checking that the product/service meets the specification, it will

single source of truth
In AEC industry with reference to information systems management, the single source of truth refers to Common Data Environment (CDE) The single source of truth is a method of structuring
Parametric behaviour
The parametric behaviour of an object describes whether its shape, position, and orientation are designed to be dependent on other information associated with the object or the context in which
Working Group (WG)
WORKING GROUP (WG) Specialized group within a committee that is responsible for drafting a particular standard or set of deliverables. It is usually quite small, composed of experts and headed by
Dimensionality
A dimension of space, such as width, height, or length. can be zero-dimensional (location point), one-dimensional (e.g. line, curve, path), two-dimensional (e.g. surface, face), or three-dimensional (e.g. surface, face) (e.g.
Basic protection
Protection against electric shock under fault-free conditions;use of barriers,placing out of reach,and so forth.
Project setup
During project setup phase It is essential to establish and analyse a timeline that guides the entire team in delivering the project on time. Thus the prospective Lead Appointed Party
National digital twin
An ecosystem of digital twins connected via securely shared data. https://www.cdbb.cam.ac.uk/DFTG/GeminiPrinciples
rationalise
In construction, to rationalise is to attempt to remove, explain or justify irrational quantities, processes or systems or else adjust unreasonable design decisions by employing logic or reason, (behaviour, attitude),
objective
results to be achieved The objective can be strategic or operational; it can relate to different disciplines such as financial, health and safety, or environmental. The targeted results can be
Ambient temperature rating factor (Ca)
Ambient temperature rating factor used for calculating theminimum required cable size. For cables installed in air, values for this factor are given in BS7671:2018 Table4B1.For ground installations, values are given
Pre-appointment BEP
Pre-appointment BEPs communicates the delivery team’s intended approach to the information management process in the project, it is submitted as part of the prospective Lead Appointed Party tender response. For
digitalconstruction campaign!
https://www.linkedin.com/posts/willmottdixoninteriors_digital-construction-willmott-dixon-interiors-activity-6806218396632457216-h8PT
Resources
In the context of project management, the resources refer to optimizing the use of resources for successful project execution and the management of resources in the project. [1] Therefore, the

BS EN ISO 31000:2018
Risk management guidelines ISO 31000 is an international standard first published in 2009, the current version published in 2018. The standard contains principles and guidelines for effective risk management. It
