# Presentation: 672342

## US CMS Level II Telecon

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- Dan Green &
- Ed Temple
- November 7, 1997
- 12:20 PM CDST

## Introductions (1)

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- US CMS Level II Telecon

- Each Level II Manager & Participant
- Say a few things about background
- Describe self, as perceived by self and as perceived by others
- State aspirations wrt CMS

## Introductions (2)

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- US CMS Level II Telecon

- Temple led ER Reviews; hardnosed but fair
- Described by others, particularly at the Advanced Photon Source as
- Expecting a lot from the team
- But very fair, and
- A “People Person”
- Perceive self as highly “task oriented”

## Purpose of Telecon

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- US CMS Level II Telecon

- Discuss need to “baseline” CMS Detector.
- Means Self-Consistent Technical, Schedule, and Cost Baseline including “believeable” contingency, in present US HEP context.
- Discuss a couple of approaches.
- Hope to reach consensus on approach.

## Background

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- US CMS Level II Telecon

## Approach Step 1

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- US CMS Level II Telecon

- Conduct Project Management Group reviews of each Level II System aimed at establishing a credible estimate (including contingency) for the present technical scope.
- Once this is done for all systems, we’ll know how much we need to descope the overall US CMS effort

## Approach(1) Step 1

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- US CMS Level II Telecon

- Level II Managers prepare and present their systems to the PMG including contingency.
- If US CMS PMG agree with estimate for present scope as presented, this step is complete.

## Approach(2) Step 1

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- US CMS Level II Telecon

- If TD and CPM do not agree with the estimate, they propose their own.
- Or if US CMS PMG does not agree with estimate for present scope as presented, this matter is discussed and negotiated until there is agreement.

## Approach Step 2

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- US CMS Level II Telecon

- US CMS develop appropriate ($ amount) descope while maintaining
- optimal physics capability, and
- to the extent possible, capability to regain scope if future cost performance is quite good
- US CMS discuss / negotiate the proposed descope with the International CMS Collaboration / Management

## NEXT STEPS

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- US CMS Level II Telecon

- Continue PMGs by Level II
- TriDAS - Trigger portion 10/23
- Part of Common Support 11/17-20
- ECAL 12/12?
- EMU Week of 12/18,19
- HCAL Sooner than Week of 12/15
- DAQ Week of 12/15
- Tracker Late December
- See Dan’s e-mail “let’s get moving.”

## Preparation Discussion

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- US CMS Level II Telecon

- “Bottoms Up” Estimate.  Listing and Cost Estimating elements required for your system from the bottom up, rather than working down from a cost ceiling.
- Contingency application.  Detector workshop concluded that 50% reasonable at the outset.  Whatever we do must be generally consistent with this.

## Contingency Guidance (1)

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- US CMS Level II Telecon

- Dan Green’s One Page Contingency Guidance.
- Design Maturity Factors:  Range 1.5 - 1.0
- Judgement:  Range 0.6 - 1.4, “but usually not less than 1.0.”

## Contingency Considerations Guidance (2)

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- US CMS Level II Telecon

- Design Maturity
- Judgement
- Technical Risk
- Difficulty
- Omissions
- Schedule Risk
- Escalation, Commodity & Current Fluctuations