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Forums >> General Discussion >> Revit Project Management >> Sheets / Model with Suitability & revision Codes

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Mon, Jul 23, 2018 at 9:18:54 PM | Sheets / Model with Suitability & revision Codes




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We haven’t started working on a full BIM project, but are using the BIM (in principle just to get the hang of BIM when we start using it at a later date) to name documents/model and use suitability & revision codes and have some confusion about it and need to know how to work with them.


So on our test project, we started preparing drawings & documents for tender stage, so most of our drawing upto now have S2, S3 for suitability code. Now are preparing for Client Sign off for Tender. Below is my understanding of how it works, please advise if this is incorrect.



Suitability Code

Purpose of Issue



Prior to Tender issue for Client Sign off


Tender Sign Off



Actual Tender Issue at Stage 5




Are the previous revisions left in place? Changing the revision setting from from P to C changes all previous revisions. So P06 become C06, which isn’t right.

When contractor is appointed and drawings are issued for Construction

Will it be A6 or CR





1. Do you save a copy of the model after every stage sign off??

2. Are the previous revisions to be removed?

3. If the previous revisions are not to be removed, how do you manage the change from P0n to C0n??

4. IF the revisions are removed and say at Stage 5, it is A5-C01, then at Construction stage – does it become A6-C01 or C02??



Your response would be appreciated. 



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Tue, Jul 24, 2018 at 12:56:43 PM | Sheets / Model with Suitability & revision Codes



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  1. We always save a copy of the Central at every completed stage.
  2. Each stage of documents is really a new set, therefore all earlier stage revisions are removed.
  3. NA
  4. Don't understand question.

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Tue, Jul 24, 2018 at 3:29:14 PM | Sheets / Model with Suitability & revision Codes



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Joined: Mon, Nov 19, 2007
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It sounds like you are in the UK. In the UK BIM Execution Plans(BEP) stipulate the drawing naming standards that applies to all project drawings and file names.Typically the BEP refers to BS1192 2007 for a standardised method of naming protocol.  BS1192 2007 refers to the numerous sheet parameters that you refer to. Familiarise yourself with your BEP and BS1192 to understand they background.In my office, in order to cater for all of these additional sheet parameters, I needed to create a bespoke sheet that had numerous additional parameters and also shared parameters. These are mostly instance based parameters, so each sheet can have its own unique suitability code/purpose of issue/ sheet status/project status. It took a while to create this but was important to move forward.If by changing one parameter it is changing all parameters on all sheets, then I think your sheet parameters are setup for type parameters and should be changed to instance parameters.My answers - 1) I recommend archiving a model every 2 weeks. Your project's BEP will tell you how often a model shall be issued to the team and more than likely states that a Data Drop should occur at the end of each RIBA stage.2) I keep all previous revisions for traditional projects. I delete all ICT revisions for D&B projects (they were done by other architects).3) The P is not included within the sheets Revision Parameter. It is a separate parameter placed on the sheet in front of the Revision Number. (Use On/Off Visibility to control it)4) Your BIM Execution Plan will define this. If not, speak to the BIM Information Manager on the project or speak to the Document Controller.


__________I'm the guy they come to when they didn't follow my recommended workflows.__________

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