LCGT from the Viewpoint of System Engineering

I. Nakatani

f2f Mtg June 15, 2010

Institute for Cosmic Ray Research, Univ. of TokyoAichi University of Technology

Let me start with a topic of the serious misconception among some of the researchers!

System Engineering (SE)

Small-laboratory based research X N

Large scale project

Small-laboratory based research X N

Large scale project+ SE

Differences between

Small-laboratory Based Research

&

Large Scale Development Project

Small-laboratory Based Research

Large Scale Development Project

- Risk is allowed – or rather risk is essential for challenging the unknown.

- Risk shall be minimized.

- Objective shall be clearly defined.

- With the pre-determined success criteria.

- Objective is flexible – sometimes changes to 180 degree different direction!

Integration of

Sub-systemsfor LCGT

WBS (Work Breakdown Structure) of LCGTIdentification of Scope of Work for LCGT Level-1

Level-2Identification of LCGT activities, subsystems &

project managements

Level-3 Identification of LCGT activities and functions subordinate to the above level-2

Level-4

BaselineExtensometer Cryogenic

SystemVibration Supression at room temp.

OpticalSystem

Interferometer

Vacuum System

Vibration Supression at Low Temp.

Mirrors

Incident Light System

Laser

Tunnel Construction

Data Collection

SPI Data Analysis

Suspension System

Electronics

Does LCGT need System Engineering?

System - Integrated whole of interdependent elements

- Creating meaningful functions

- Not obtainable with each of the elements alone

- by I.N.

Integration of sub-systems

System Engineering

Unified objective(s)

Under the restrictions of : - cost - schedule - resources It surely does!

1. Perform science value analysis and conduct feasibility studies.

System Engineering in LCGT

2. Clearly define the goals with quantitative success criteria. 3. Prepare “Type A” specification.

⇒Allocation of requirements to functional areas and their interface definitions.

4. Prepare the Test and Evaluation Master Plan (TEPM). 5. Prepare the System Engineering Management Plan (SEPM).

6. Accomplish functional analysis.System Engineering in LCGT

7. Accomplish system analysis, synthesis, and system integration. 8. Plan, coordinate, and conduct formal design review meetings. 9. Monitor and review system test and evaluation activities. 10. Plan, coordinate, implement, and control design changes. 11. Initiate and maintain construction liaison and researcher activities.

Documents for LCGT ・ Program Management Plan

・ System Specification

・ System Engineering Management Plan

・ System Requirement Document ・ Preliminary Design Document

・ Detailed Design Document

・ Human Factors Engineering Plan ・ Logistics Engineering Plan

・ Quality Engineering Plan

・ Manufacturing Program Plan ・ Environmental Plan

・ Maintainability Program Plan

・ Reliability Program Plan

・ Safety Engineering Program Plan ・ Software Engineering Plan

・ Disposability Plan

・ Security Plan

・ Configuration Control Document ・ System Engineering Master Plan

・ Test and Evaluation Master Plan

・ System Engineering Management Plan

・ Request for Proposal

・ Integrated Logistics Support Plan

Documents for LCGT（ Proposal: 2+2 ）

・ System Requirement Document ・ Preliminary Design Document

・ Detailed Design Document

LCGT Design Document - Ver. X

Interface Control Document

Configuration Control Document

Interface/Configuration Control Document

Environment Plan

Safety Engineering Program Plan

SEMP (System Engineering Management Plan)・ System Requirements・ Operation Concepts・ Technical Performance Measures & Success Criteria・ Functional Analysis・ Allocation of Requirements・ System Synthesis, Analysis and Design Optimization・ System Test and Evaluation・ Construction Requirements・ System Maintenance Requirements・ System Diposal/Recycling・ Organization・ SE Organization・ Program Tasks・ Supplier Requirements・ Key organizational Interfaces

・ Work Breakdown Structure・ Projects Schedule & Milestones・ System Operational Requirements・ Project Cost・ Technical Communications・ Program Monitoring & Control・ Functional Engineering・ Software Engineering・ Reliability Engineering・ Maintainability Engineering・ Human Factors Engineering・ Safety Engineering・ Security Engineering・ Quality Engineering・ Configuration Management・ Risk Management・ Environmental Engineering

Development Phases

Conceptual Design

Preliminary Design

Construction & Commissioning

Detailed Design

Operation

・ System requirement・ System feasibility

・ Analysis of alternatives・ Detailed feasibility analysis・ Preliminary design

・ Optimization・ Evaluation of prototypes・ Cost, schedule, man-power 　 estimation・ Configuration identification

・ Construction・ Commissioning・ Test and evaluation

・ Operation・ Maintenance・ Modifications

LCGT Development Phases

We are here!

Conceptual Design

Preliminary Design

Construction & Commissioning

Detailed Design

Operation

LCGT Development Phases― Formal Design Reviews ―

System Requirement Review

Preliminary Design Review

Critical Design Review

Initial DATA Review

We are here!

Formal Design Reviews

- All should be peer reviews.

- The process for preparing in advance of the review meetings is extremely important. - Major design decisions should be recorded with reasons for supporting them.

Cost of Design Change

Conceptual Design

Preliminary Design

Construction & Commissioning

Detailed Design

Operation

Cost

LCGT Development Phases― cost profile ―

Problem with Japanese funding system

Conceptual Design

Preliminary Design

Detailed Design

Construction

A

B

A ×B

A

B

A ×B

Conceptual Design

Preliminary Design

Detailed Design

Construction

Co

st o

f d

esig

n

ch

ang

eF

req

ue

ncy

To

tal cost o

f d

esign

chan

ge

Ideal Actual

PERT:

Program Evaluation and

Review Technique

PERT Chart for LCGT

: Critical path

Start

Goal

Task <5> can start only after tasks <2> and <3> have been completed.

ID number

Task

Start date Finish date

Required duration (weeks)

Conclusions-1 - LCGT needs more SE oriented approach. 　　プロジェクトの形にはなっていない - LCGT has small organization with limited resources compared with the counterparts abroad. 　極めて小さな組織

- Small organization needs different SE approach as opposed to the one by large organizations. 　　　独自の SE 手法を追求 - seeking for extremely efficient way of planning, development and operation　　　　　　　　　　　　　　　　　　　　　高い効率を追求

Conclusions-2 Projects with small organization have obviously disadvantages, but they have advantages as well. 　

小さい組織には有利な点もある

Small organization could lead to - a flexible project management

- quick decisions- reliable interface control

- minimum documents - minimum red-tape meetings or duplicated reviews

Conclusions-3

Summing up:

Smaller, Faster, Better!

END