U.S. ATLAS HL-LHC Upgrade LAr Level 2 and Level 3 Managers Mailing List

[John Parsons <parsons AT nevis.columbia.edu>]

Just landed at Newark. I spent time on the flight working on the RR and will send new version for checking later this afternoon

Sent from my iPhone

On Mar 10, 2023, at 10:36 AM, Ma, Hong <hma AT bnl.gov> wrote:



                As John is traveling back, we are not meeting today.

                There is a urgent request by PO to update the supply chain risks, which was discussed when we were preparing for the DR.

                Chris wants to run the MC next week.

 

                Please take a look at the latest risk registry,

 

https://atlas-hllhc.docdb.bnl.gov/cgi-bin/public/ShowDocument?docid=196

 

and propose changes.

 

                The simplest is probably to drop the probability from 63% to a much lower level. 

Please also note Gustaaf’s suggestion to increase the FW complexity risk cost.  I am not sure if I understand the logic, that adding resources will increase the cost when there is actually no new scope.

 

Best,

 

                Hong.

 

From: Gustaaf Brooijmans <gusbroo AT nevis.columbia.edu>
Date: Friday, March 10, 2023 at 9:32 AM
To: Ma, Hong <hma AT bnl.gov>
Cc: Parsons, John <parsons AT nevis.columbia.edu>, Meyer, Chris <cjmey AT iu.edu>
Subject: Re: supply chain risks?

 

Hi Hong,

 

Those recommendation were made in  summer 2021 because we had no good basis at that time for individual estimates.  As you point out, we do now, so you should feel free to update the numbers.

 

BTW, looking at BCP 1058, the FW complexity risk maxed out at $150k, and we will now have added ~$1M in FW effort.  I would suggest to revise the upper value on that upward, as I think we are likely to have to add even more FW effort if we can find it.

 

Best,

 

Gustaaf

On Mar 10, 2023, at 3:03 PM, Ma, Hong <hma AT bnl.gov> wrote:

 

Hi Gustaaf, 

 

                I had an exchange with John after yesterday’s 2pm meeting.    John is traveling today back to the US.

                We will not be able to provide the updated risks by Monday noon, as Chris requested at the meeting, but we will try to get it sometime next week.

                We will remove some of the risks (PA/Shaper preproduction fabrication, for example), but there are still many left with very high probabilities (63%), based on the recommendation we had when the risks were first entered. 

                Is there a new recommendation, or should we just use our own judgement to update it?     The recent experience with the vendors is not too bad, so some adjustment is warranted.

 

                Best,

 

                Hong. 

 

                

 

 

From: Gustaaf Brooijmans <gusbroo AT nevis.columbia.edu>
Date: Friday, March 10, 2023 at 7:25 AM
To: Parsons, John <parsons AT nevis.columbia.edu>, Ma, Hong <hma AT bnl.gov>
Cc: Meyer, Chris <cjmey AT iu.edu>
Subject: supply chain risks?

Hi John, Hong,

I think we’ll need your revised supply chain risks sometime next week.  Is this possible?

Thx

Gustaaf

 

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