single source of truth

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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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 information models and related CDE in such a way that every data element is stored exactly once.

Any possible links to this data element (perhaps in other areas of the CDE or even in distant federated databases) are by reference only.

Because all other locations of the data just refer to the primary “source of truth” location, updates to the data element in the primary location propagate to the entire system without the possibility of a duplicate value somewhere being forgotten.

[source:  Babylon software thesaurus, word ‘schema’ replaced by CDE]

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