GRFN

Aggregated Model

An assembly of Contributors' Models for a specified phase of the building’s life cycle.

Analysis Matrix

A matrix used to identify combinations of tests for focussing analysis.

Analysis Obligations

Models must be uploaded by the agreed time.
The Lead Designer will set the priority of issues.
Contributors will work to minimise the time between a resolution being found and being implemented into the Model.
The Issue Resolution Workshop will be attended by the Design Lead and Model Lead relevant to the Analysis Scope.
The Lead Designer will set the Analysis Scope for the subsequent Analysis Cycle.
The Contributor assigned to an issue will update the Issue Management System to report progress.

Analysis Programme

A programme to identify when analysis is run in terms of location and focus.

Analysis Scope

Outlines which Elements of a Model will be analysed.

Beneficiary

A Participant who will be in receipt of Models and/or data for the Reliant Use(s).

BIM Brief

The instruction to the Participants providing clear and realistic objectives and requirements, including obligations and standards.

BIM Scope

A clear outline of the extent, granularity and quantity of information that will be produced in accordance with the BIM Brief.

BIM Strategy

A combination of the Brief and the Scope developed for use by the Contributors. The strategy provides a basis for achieving the Client’s objectives in a consistent and structured manner.

Building Information Modelling (BIM)

A collaborative and transparent process to produce, communicate, and analyse built for purpose Models. These Models make up a project assembly that contains the relevant geometry and data for the appropriate phase of the building’s life cycle, as outlined within the BIM Strategy.

Clash Analysis

A process to identify the geometric clashes in the Analysis Scope.

Contributor

A Participant who contributes Models and/or data to the BIM process.

Data Mapping Table

A table in which Contributors record where the required data fields are to be found in the information they deliver.

Data Scope

The attribute requirements (fields and directories) for Elements in the Contributor's Model.

Design Lead

The Participant’s representative who is responsible for the day-to-day design and is responsible for validating their Model Scope. This individual must understand their fee, resourcing, design responsibility and the Reliant Use(s) of their Models. The relevant Design Lead will need to be present at the Issue Resolution Workshops.

Element

A system, assembly, component or zone which fulfils a function of the construction entity.

Element Class

Defines whether an Element is a system, assembly, component.

Element Scope

The Elements required to be modelled in the Contributor's Models

General Arrangement Review

An interdisciplinary comparison between GA Elements and the corresponding Placeholders in terms of geometry, location and orientation.

Issue Management

The tracking and reporting of issue priority, status and allocation.

Issue Management System

A software to support Issue Management, allowing for the tracking and reporting of issue priority, status and allocation.

Issue Resolution Workshop

A collaborative session covering issues resulting from analysis where the priority, status and allocation of issues are discussed and set.

Level of Detail (LOD)

Defines the representation of the three dimensional geometry of an Element. (The LOD does not imply a Data Scope to be attributed to the Element. Reliant Use(s) of a Model cannot be inferred from the LOD of its Elements.)
D1 – Represents the volumetric extent of the Element

D2 – Represents all the external surfaces of the Element
D3 – Represents all the external and internal surfaces of the Element

Level of Granularity (LOG)

Defines the number of sub-elements representing the parent Element Class. (When applying a LOG to an element it only relates to the generation immediately preceding or following its tier.)
G1 – Represents the Element as a single entity
G2 – Represents the Elements that need to be inspected, maintained and/or replaced individually within the parent Element by the Operations Manager.
G3 – Represents all the Elements that are required to assemble the parent Element

Licence

A permit to use a Model(s) for a particular Reliant Use(s) or Non-reliant Use(s).

Location & Orientation

Outlines where the physical location of the project is transposed to in model space and specifies the orientation.

Logistics Analysis

A process to identify and simulate, in space and time, the particular order, path and movement of Elements.

Manager

The Participant on the project who is responsible for the leadership, execution and delivery of the BIM process.

Master Volumetric Scope

All the zones that make up the volumetric totality of the project.

Model

The three-dimensional geometry and attribute data representing a Contributor's Model Scope.

Model Audit

A self-contained, one-off analysis performed to measure compliance with requirements and/or to gauge Model Fidelity.

Model Fidelity

The degree of exactness with which Elements are modelled with regards to their intended interface, location and orientation. (Level of Detail (LOD) is irrelevant)

Model Lead

The Participant’s representative who is modelling on the project and is responsible for the Model Fidelity of a particular Model Scope. This individual must anticipate the time required to implement change. The relevant Model Lead will need to be present at the Issue Resolution Workshops. (This is not to be confused with the organisation's BIM advisor.)

Model Scope

Outlines where and what the Contributors are modelling and consists of Volumetric Scope, Element Scope and Data Scope. (Model Scopes are developed specifically for their Reliant Use(s).

Modelling Obligations

Contributors will concurrently develop the design and Model as an iterative process.
Contributors will ensure that any Element within a Model which is illustrated on drawings will be derived from the Model.
Contributors will ensure Model Fidelity.
Contributors will ensure that the attribute data applied to Elements is correct.

Nomenclature Analysis

A process to check if the required data attributes are populated with the correct nomenclature as specified in the Contributors’ data directories. (Nomenclature Analysis does not validate whether the content of the attribute fields are correct.)

Non-reliant Use

Any use for a Model Scope other than the Reliant Use(s); for which the model author is not held liable.

Participant

A Beneficiary, Contributor or Manager partaking in the BIM process.

Placeholder

A temporary representation of an Element by a Placeholder Author that will be superseded in time by the Primary Author's Element.

Placeholder Author

A Contributor who is responsible for the modelling of a Placeholder Element until superseded by the Primary Author's Element.

Primary Author

A Contributor who is responsible for the creation and validity of an Element’s geometry and data as defined in the Model Scope.

Reliant Use

A use for which a Model Scope is specifically developed and validated, and for which the model author is liable. (Models are developed in the most efficient way for their Reliant Uses which may not be suitable for other uses of the Model).

Strategy Obligations

All Participants are to appoint a Design Lead and a Model Lead as key points of contact. (Notify GRFN if these individuals change)
Design Leads and a Model Leads will be available for the development of the BIM Scope.
The BIM Scope will be defined with an understanding of the time and resource implications of the Modelling Obligations and Analysis Obligations.

Volumetric Scope

An agreed three-dimensional zone(s) representing the modelling extent of a Contributor's Model.

Volumetric Extent

An agreed three-dimensional zone communicating the modelling extent of a Contributor’s Model.

Volumetric Strategy

An agreed assembly of three-dimensional zones clearly communicating different locations of the project for focus.

Introduction

We provide information management services across all project types, with specialist expertise in helping developers meet the legislative requirements of the Golden Thread for High-Risk Buildings. We ensure project data is accurate, secure, and compliant throughout the asset lifecycle. By aligning people, process, and technology, we mitigate risk, improve coordination, and enhance the fidelity of information across design, construction, and operation.

Services

Information Management

We oversee the creation, exchange, and delivery of project information to ensure it is accurate, timely, and fit for purpose. We scope, digitise, and unify information workflows to streamline processes, support effective monitoring and reporting, track issues, and progressively enrich asset and system data throughout the project lifecycle.

BIM Coordination

We support the integration of 3D models and associated data, helping teams align their design outputs with project requirements. Our coordination services promote collaboration, identify and resolve clashes, and provide structured reporting to track model development from early design through to handover.

CDE Administration

We provide licences and technical administration for Autodesk Construction Cloud, setting it up as the central platform for managing project information. Our service ensures the Common Data Environment (CDE) is structured, accessible, and efficient for storing, sharing, and collaborating on key project documentation.

Document Control

We manage the organisation, distribution, and versioning of documents and drawings, ensuring project stakeholders always have access to the latest, most relevant information. Our approach reduces risk, supports compliance, and keeps project teams aligned.

Appointment Guidance

Asset Information Requirements (AIR)

BIM Responsibility Matrix (BRM)

Capability Statements

Declaration of Digital Literacy

Exchange Information Requirements (EIR)

Handover Requirement

Implementation Strategy

Information Management Policy

Master Information Delivery Plan (MIDP)

Pre-Qualification Questionnaire

Project Information Requirements (PIR)

Task Information Delivery Plan (TIDP)

Tender Information

Clash Analysis

Data Analysis

Data Mapping

Digital Snagging

Discovery & Assessment

Logistics Analysis

Placeholder Analysis

Quantification

Sequence Analysis

Strategy Analysis

Model Aggregation

Model Coordination

Model Completeness

Model Data Tracking

Model Data Completeness

Data Management

Issue Management

Model Management

Performance Management

Project Management

Tender Support

Management Training

Process Education

ACC Docs

ACC Design Collaboration

ACC Model Coordination

ACC Takeoff

ACC Build

ACC Cost Management

Principles

People

Good people are willing

People who are open minded and ready to act enable success

Good people are able

People should demonstrate skill, diligence and aptitude for their required task

Good people communicate

People need to share progress and ideas for efficient development

Good people are essential

When striving to achieve success, everything is secondary to having the right team

Process

Good process is innovative

Today’s advanced practices become tomorrow’s standards

Good process is lucid

Processes which are coherent and easy to understand allow for quick and simple adoption

Good process is agile

Processes which are scalable and adaptable suit the dynamism of real projects

Good process is as little process as possible

Concentrating on the critical path drives focus within a team and provides clarity

Technology

Good technology is accessible

Technology should allow easy retrieval of information within budget and capability, regardless of location

Good technology is intuitive

Using technology should be instinctive, allowing one to learn naturally

Good technology is interoperable

Technology should facilitate rather than hinder the sharing of information

Good technology is discreet

Technology should be unobtrusive within the methods of achieving one's goal

Projects

BBC Television Centre

Hilton Hotel Park Lane

Holland Park Residence

Contact

Address

180 Strand, 2nd Floor
London
WC2R 1EA

+44 20 7072 0020
info@grfn.com

Business Enquiries

We provide a high quality service and only work where we can bring value. To engage our services or discuss your project or organisation please do not hesitate to get in touch. We are always refining our approach and collaborating with others to innovate further.

Career Enquiries

We invest in the right people, appreciating that a team’s strength is dependant on the combination of individuals within it. We want those who share our values and possess the traits we believe are necessary to provide a high value service. Please send your CV to careers@grfn.com.