1. Bobby
  2. General
  3. Wednesday, 01 February 2017
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Hi
Are there any best practice examples or work flow examples of how COBie is developed during construction and how are Data Drops used in the U.K. Assume that Revit or Archicad are the 3D modelling tools - Specific questions I have are as follows

1. Is the process a "one way" process, i.e. Is information exported only from Revit to a COBie spreadsheet or is the information re-imported back into Revit if changes are made to the spreadsheet.

2. Do all 5 Data Drops come from Revit - particularly Data Drop 5 (O&M).

3. Is there ever only 1 COBie spreadsheet used to create each drop and in that respect is all of the data added to Revit first before it is exported as a Data Drop.

4. Is the final COBie spreadsheet issued at each drop created by merging mini COBie spreadsheets containing information e.g. Mechanical Components from one source and Electrical Components from another - cutting and pasting information from one spreadsheet to another.

5. Does the building owner receive a single COBie spreadsheet at Handover or does he receive many spreadsheets, each containing information for components for different systems or work packages.

6. Is there any manual input required to the COBie spreadsheet before it is delivered to the Building Owner or does everything come from Revit.

Regards
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Ralph M Accepted Answer Pending Moderation
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If we could, in the first instance, and at the very least, get each discipline/supplier, to produce and manage their information, in a Level 2 BIM process, in a software that is IFC compliant, where the "information" that is required to generate the "outputs" - notes on drawings, or the fields in schedules, was actually contained as attribute values in the objects or materials that make up the BIM themselves (and just weren't typed as dumb annotation text), then we would have achieved a lot (in my opinion). It would mean that the "information" would be available to others in a organised, structured and recognizable format, when trying to federate, or exchange the information. So in the short term, at Level 2 BIM, I do believe that the authoring software, in which each discipline/supplier is working (Revit, Archicad, Excel, Tekla etc), is the best place to produce/manage as much of the information as possible. Long term, I fully agree we need a proper Level 3 data management solution.
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Shawn Accepted Answer Pending Moderation
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Hi Ralph, I do not speak of "Level 3 BIM". In fact COBie is the level 2 deliverable. Therefore, if folks are not defining the data properly in their tools during the project life cycle, and extracting it/COBie out when the drawings are printed, then whats the point? Resorting to excel is no option on large projects of mine where it would take 4 man years to round up the asset data for only 1/5 of the campus! This is not Level 3 it is common sense. If folk wait for Level 3 to do this then they are not doing Level 2.
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