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buildingSMART International . What is IDM and MVD by Bjørn K Stangeland buildingSMART Norge medlemsmøte 25 th September 2009. Multiple BIM authoring tools Exchange/sharing between domains and within a domain. Architect/ Structural (In reality separate domains). Electrical domain.

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Buildingsmart international

buildingSMART International

What is IDM and MVD

by

Bjørn K Stangeland

buildingSMART Norgemedlemsmøte

25thSeptember 2009


Multiple bim authoring tools exchange sharing between domains and within a domain
Multiple BIM authoring tools Exchange/sharing between domains and within a domain

Architect/

Structural

(In reality separate domains)

Electrical

domain

HVAC

domain

Process: Collision detection

Thermal

domain

Courtesy: German IAI for Building Services


IDM – Information Delivery Manual

Exchange Requirements(ER)

Process Map (PM)

Task I (Software A) - produce

Task II (Software B + C) - consume

Courtesy: Lars C Christensen


PM and ER’s

Skills needed to define (and understand) Process Maps and Exchange Requirements (ER’s): Domain Expert (not IFC experts and software engineers!)

Task II (Software B + C) - consume

What information (the I in BIM) do person A need from person B - and when - to do a specific task.

Define the “task“ and “why/when” the exchange is to occur: PM

What information do I need (mandatory) and what would I like to have if I could get it (and what does I not want)

Courtesy: Dianne Davis, AECInfosystems


Example: Energy simulation

Building Usage ER

(Thermal loads, schedules etc.)

Building Envelope ER

(Requirements like U-values, space boundaries etc.)

Task II (Software B + C) - consume

Weather data ER

(In format Xyz ….)

Process Map (PM)

(Whendoesexchange of which information between processes need to occur and why?)


MVD – Model View Definition

Where to in the IFC schema (binding) can we find the relevant entities to use to support ER’s this “type” of process.

For the TECHNICAL people (developers)

What information that’s mandatory and optional (and unwanted) is defined in the Exchange Requirement(s)!!

MVD has the scope of identifying what is relevant between “applications types”.

Where information defined in multiple ER’s may found be in the same MVD .

Typical: Early stage and detailed designed building envelope for energy analysis


The optimist proclaims that we live in the best of all possible worlds, and the pessimist fears this is true”

James Branch Cabell


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