Level of information (LOI)

Dictionary
Digital Construction (electrical)

term introduced first in PAS 1192 and updated in ISO 19650 framework, it depicts the process of specifying and delivery of project and asset information

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forms a framework that supports informed and consistent decision making by project teams, at each work stage, helping to deliver agreed and reliable information.

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Exchange Information Requirements (EIR) term introduced by BS EN 19650 replace the PAS 1192 term Employer Information Requirements (EIR) on all projects where BS EN ISO 19650 compliance is required.

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The term introduced by ISO 19650 typically describes the Tier 1 Main Contractor.

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breakdown structure to help plan the production of information

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schedule of information containers and delivery dates, for a specific task team

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An MPDT its old PAS 1192 term, the MPDT defines who produces what, when and to what level of detail.

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used to describe non-geometrical information

LOI + LOD = Level of information need

LOI it is PAS 1192 term, now superseded by BS EN ISO 19650 term …’Level of information need’…

BS EN ISO 19650:2018 set of standards introduced a new term ‘Level of information need’ which is designed to replace the terms used in PAS1192 such as Level of model definition/level of detail (LOD) and level of information (LOI). Since the PAS1192-2:2013 has been withdrawn the new BS EN ISO 19650-2:2018 term Level of information need shall be used


The term LOI will remain to be used in conjunction with LOD (Level of Detail) – both terms can be contained under the umbrella of the new ISO term level of information need

For an up to date definition of the term Level of information need go to Information Management according to BS EN ISO 19650 Guidance Part 1 quoted below:

6.5.1 What is the level of information need and why do we need it?
Information is required for a purpose, such as to perform a task or support a decision.
The level of information need is defined to enable the right level of information to be provided
to satisfy the information related purposes at each information exchange. It is important to avoid
the delivery of too little information, which increases risk, and the delivery of too much
information, which is wasteful.
The level of information need is a broad concept which represents the framework for how the
“richness” of each information deliverable is going to be defined. There are many different ways
to express the level of information need, including the richness of geometrical details and the
richness of datasets.
Note that ‘level of information need’ should not be abbreviated.

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