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  • PublisherCIBSE
  • Product CodeDE5
  • Number of pages20
  • Publication DateApr 2017
  • ISBN9781906846978

DE5: Asset Information Requirements

CIBSE Members

PDF Format




PDF Format



DE5: Asset Information Requirements

DE5, part of CIBSE's Digital Engineering series, is intended for those that specify, commission and use Asset Information Requirements documents (AIRs).

A free-to-access template associated with DE5 is available, and is intended to be a generic template that users can modify in any way they see fit.

This guidance note is written in reference to PAS 1192-3:2014 and BS ISO 55000:2014, as these documents provide the framework around which an AIR is structured.

It is not intended to be an exhaustive or definitive document and it will be necessary for users of the guidance given to exercise their own professional judgement when deciding whether to abide by or depart from it.

An Asset Information Requirements document may take any one of a number of forms, there is no prescribed right or wrong way of creating an AIR. The information that is required by an asset is that which is relevant to the stakeholders in the use of said asset.

Much of the information requirements will come from the organisations that own and use the asset. These may be different organisations and co-ordination between parties may be required. These individual corporate requirement sets are known as Organisational Information Requirements (OIRs) and will be dealt with in more detail in a separate guidance note.

The purpose of an AIR is to ensure that information relating to the running of an asset is generated, collated and delivered during the life-cycle of the asset. It should also describe the methods by which information is transferred into the Asset Information Model (AIM).

Further to this, the AIR will be one of the primary sources for an Employer’s Information Requirements (EIR) document, details of which are covered in a separate guidance note.

Associated publications:
The full set of titles within the Digital Engineering Series, so far published as at July 2017, are listed below. Each is linked to the appropriate page of our website:


We have also provided templates that should help with organise Model Review Meetings, which are available here: 

Model Review Meeting Agenda
Model Review Meeting Minutes





BS ISO 55000

PAS 1192-3

General Principles

Use of AIR

- Asset in use

- Asset creation or major works

Creation of the AIR

- Template

- Topics

     - Legal Information

     - Commercial Information

     - Financial Information

     - Technical Information

     - Managerial Information

Using the AIR Template

- Facility

- Space

- System

- Component


Appendix 1 – Further Reading



Carl Collins  – Consultant to CIBSE


Other acknowledgements:

Martin Howe (SES Engineering Services), BEAMA BIM Steering Group