Parametric behaviour

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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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 it is placed, allowing for full or partial reconfiguration.

An object’s parametric behaviour can be transferred as part of the information delivery or not.

The parametric behaviour can be requested fully, partially, or not at all in the context of information exchange.[1]

To some extent, the following geometry types can allow the transfer of parametric behaviours:

  • Explicit geometry defines shape as boundary representations (vertices, edges, and faces) that cannot be modified by other parameters;
  • constructive geometry defines shape as constructive solid geometry based on geometric primitives and swept solids that can be modified by shape parameters.
  • The definition of a single shape or an assembly of shapes through equations that provide values for shape parameters, allowing for shape modifications based on object or context characteristics, is known as parametric geometry.

[1] BS EN 17412‑1:2020 clause 6.2.6

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