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ELI5
Nominal line voltage to earth (Uo)
Uo Nominal line voltage to earth. Assumed to be 230 V for grid connected systems.
Built Environment
All forms of buildings (residential, industrial, commercial, hospitals, schools), all economic infrastructure (above and below ground) and the urban space and landscape between and around buildings and infrastructure3, as well

lead appointed party
The term introduced by ISO 19650 typically describes the Tier 1 Main Contractor. For example: : The Lead Appointed Party is a specific entity directly appointed (employed) by the primary
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
BS EN ISO 19650-1:2018
Organization and digitization of information about buildings and civil engineering works, including building information modelling (BIM) — Information management using building information modelling Part 1: Concepts and principles
Design-Bid-Build
A contract type There is a sequential award of two separate contracts; the first contract is for design services; the second contract is for construction; design and construction of the
Globally Unique Identifier (GUID)
globally unique identifier (GUID) its a unique object identifier that guarantees its uniqueness throughout its entire life unique, the identifier is usually generated using an algorithm a unique identifier generated
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
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
Gateway (Parallel)
[And] When used to split the sequence flow, all outgoing branches are activated at the same time. When parallel branches are merged, it waits for all incoming branches to complete

Electrical & Mechanical Equipment Access and Maintenance
Electrical & Mechanical Equipment: Access & Maintenance (UK) “All controlgear shall be mounted so as to facilitate its operation and maintenance. Where a special tool is necessary to adjust, maintain,
Team’s Capability and Capacity
The competence and understanding of BIM, of the consultants and delivery team partners to be involved in the project, shall be assessed and results included in Post-Contract BEP. The assessment
information
reinterpretable representation of data in a formalized manner suitable for communication, interpretation or processing [cited from ISO 19650-1:2018(en), 3.3.1]

x-ref
The term “X-ref” is commonly used as an abbreviation for “External Reference” in various technical and engineering fields, including construction, Building Information Modeling (BIM), and computer-aided design (CAD). Here’s a
graphical
The PAS1192 term has been replaced by ISO19650 term ‘geometrical’ Geometrical is more appropriate to describe spatial positioning and relationships
Quality Assurance (QA)
Quality assurance (QA) is the action or process of verification that a requirement in terms of quality is being met. Managing the quality involves planning, establishing a workflow for fulfilling,
record
document stating results achieved or providing evidence of activities performed [1] Note 1 to entry: Adapted from ISO 9000:2005, 3.7.6. 1 Online Browsing Platform (OBP) [WWW Document], n.d. URL https://www.iso.org/obp/ui#search (accessed 4.10.21).

Updates to BS 7671:2018+A2:2022 – Summary for High Risk Buildings
Key Updates and Amendments Arc Fault Detection Devices (AFDDs) – Regulation 421.1.7 Amendment 2 (2022) Changes:BS 7671:2018+A2:2022 introduced mandatory AFDD requirements for single-phase AC final circuits supplying socket outlets with rated
delta exchange
exchange of only changed information between two synonymous sources PAS 14191:2020
BS EN ISO 14004:2016
Environmental management systems General guidelines on implementation

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
suitability
degree to which a product, system or information provides functions that meet stated and implied needs when used under specified conditions [cited from: ISO/IEC 25010:2011(en), 4.2.1, added word ‘information’] appropriateness

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
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]
UK National Annex 2021 Discipline vs Role
The field ‘Role’ has been renamed ‘Discipline’ in the most recent edition of BS EN ISO-2 19650-2:2018 NA February 2021. The previously used role codes, derived from BS 1192:2007, had

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
Periodic Model Quality Control Checks
Apart from the weekly model coordination effort that focuses on spatial coordination and clash resolution, the Appointment BIM Manager should review all disciplines project models and ensure compliance with BEP
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
Information Maturity
a current state of development of an organisation to utilise information in an advanced strategic manner to increase productivity, measured against an assumed optimal state

Secondary Supply – diverse cable route
This guidance covers the routing of secondary supply cables from a life safety generator to the ATS (Automatic Transfer Switch), and the final equipment with reference to:
BS 7671:2018+A2:2022, specifically Section 560: Safety Services
BS 8519:2020, with emphasis on Clause 7 (Cable Routing) and Clause 11 (Cable Selection)
The goal: clarify requirements for the diverse cable routing and maintain circuit integrity under fire conditions for systems that support life safety and fire-fighting applications, such as sprinkler pumps, fire-fighting lifts, and smoke control systems.
Voorwaarden scheppen voor Invoeren Standaardisatie ICT in de Infrastructuur-sector (VISI)
VISI acronym for Dutch standard for communication between partners in construction projects translates as Creating conditions for the implementation of ICT standardization for the construction industry [1] 1 Online Browsing

Psychological attributes of collaborative working
The psychology of workplace collaboration can be traced back to the everyday interactions that occur in any organization. In the fast-evolving business world, there is a rising need to move

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
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
Operations and Maintenance (O&M)
Describes the functions, duties, and labour associated with the operations of an asset, including repairs, replacement of parts and structural components, and other activities needed to maintain an asset.
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
Risk Register
means a risk register containing the risks associated with the timely delivery of information as may be identified in the Information Particulars and/or provided in accordance with the Information Standard.
BS 7799‑3:2017
Information security management systemsPart 3: Guidelines for information security risk management (revision of BS ISO/IEC 27005:2011)
BS 8541-4:2012
Library objects for architecture, engineering and construction Part 4: Attributes for specification and assessment – Code of practice Note: ISO 22014 and ISO 22057 are under development tosupersede BS 8541,
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
Open Data
The Open Data Institute (ODI) defines open data as information that is licensed for anyone to use for any purpose at no cost. Open data can be accessed, used and
pre-design process
construction process (3.3.2) determining construction properties (3.5.1) for the built environment (3.1.7) before it is designed[1] 1 Online Browsing Platform (OBP) [WWW Document], n.d. URL https://www.iso.org/obp/ui#search (accessed 4.10.21).
data aggregation
Data aggregation refers to a process that involves gathering information and expressing it in summary form for statistical analysis or other purposes. In many cases, data aggregation is exclusively done
Architecture, Engineering and Construction (AEC) integration with Industry 4.0
The meaning of the term Industry 4.0 has not been concluded. There is a level of ambiguity of what it means for the construction industry[1] According to Jim Mansfield,
Design Build
A contract type used in construction, typical characteristics: There is a single contract for design services and construction services; design and construction of the project may be in sequential phases
UML diagram
provides the data structure for data templates using objects, collections and relationships between them. The multiplicities in the UML diagram specify the range of allowablecardinality values, giving a specification of
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
Grouping rating factor (Cg)
Grouping rating factor used for calculatingminimum required cable size. For cables installed in air, values for this factor are given BS7671:2018,Tables4C1,4C4,4C6.For ground installations, values are given in Table4C2. Grouping a
