Download 11 f2f Mtg. Ver.2

f2f Mtg June 15, 2010
LCGT from the Viewpoint of
System Engineering
I. Nakatani
Institute for Cosmic Ray Research, Univ. of Tokyo
Aichi University of Technology
Let me start with a
topic of the serious
misconception
among some of the
researchers!
System Engineering
(SE)
Small-laboratory
X
based research
Small-laboratory
X
based research
N
Large scale
project
N + SE
Large scale
project
Differences between
Small-laboratory Based Research
&
Large Scale Development Project
Small-laboratory Based Research
- Risk is allowed – or rather
risk is essential for challenging
the unknown.
- Objective is flexible – sometimes
changes to 180 degree different
direction!
Large Scale Development Project
- Risk shall be minimized.
- Objective shall be clearly defined.
- With the pre-determined
success criteria.
Integration
of
Sub-systems
for LCGT
WBS (Work Breakdown Structure) of LCGT
Level-1
Identification of Scope of Work for LCGT
Level-2
Identification of LCGT activities, subsystems &
project managements
Identification of LCGT activities and functions
subordinate to the above level-2
Level-3
Level-4
Mirrors
Baseline
Extensometer
SPI
Vacuum
System
Incident
Light System
Tunnel
Construction
Data
Collection
Data
Analysis
Vibration
Supression
at room
temp.
Electronics
Interferometer
Vibration
Supression
at Low Temp.
Optical Laser
System
Cryogenic
System
Suspension
System
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.
System Engineering
Integration of sub-systems
Unified objective(s)
Under the restrictions of :
- cost
- schedule
It surely does!
- resources
System Engineering in LCGT
1. Perform science value analysis
and conduct feasibility studies.
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).
System Engineering in LCGT
6. Accomplish functional analysis.
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
・Request
for Proposal
・Human Factors Engineering
Plan
・ Logistics Engineering Plan
Integrated Logistics
Support Plan
・Quality Engineering Plan
・
・Reliability
Program Plan
・Manufacturing
・Environmental
・Maintainability
・Safety
Program Plan
Plan
Program Plan
Engineering Program
Plan
・Software Engineering Plan
・Disposability
・Security
Plan
Plan
・Configuration
Control Document
・System
Engineering Master Plan
・System
Engineering Management
Plan
・Test and Evaluation Master Plan
Documents for LCGT
（Proposal: 2+2）
・System
Requirement
Document
・Preliminary Design
Document
・Detailed
LCGT Design Document
- Ver. X
Design Document
Interface Control Document
Configuration Control
Document
Interface/Configuration
Control Document
Environment
Plan
Safety Engineering Program Plan
SEMP (System Engineering Management Plan)
・System Requirements
・Work Breakdown Structure
・Operation Concepts
・Projects Schedule & Milestones
・Technical Performance
・System Operational
Measures & Success
Requirements
Criteria
・Project Cost
・Functional Analysis
・Allocation of Requirements ・Technical Communications
・System Synthesis, Analysis ・Program Monitoring & Control
・Functional Engineering
and Design Optimization
・System Test and Evaluation ・Software Engineering
・Construction Requirements ・Reliability Engineering
・System Maintenance
・Maintainability Engineering
・ Human Factors Engineering
Requirements
・System Diposal/Recycling ・ Safety Engineering
・ Security Engineering
・Organization
・ Quality Engineering
・SE Organization
・Configuration Management
・Program Tasks
・Risk Management
・Supplier Requirements
・Environmental Engineering
・Key organizational Interfaces
Development Phases
LCGT Development Phases
We are here!
Conceptual Preliminary
Design
Design
Detailed
Design
Construction
&
Commissioning
・System requirement
・System feasibility
・Analysis of alternatives
・Detailed feasibility analysis
・Preliminary design
Operation
・Operation
・Maintenance
・Modifications
・Construction
・Commissioning
・Test and evaluation
・Optimization
・Evaluation of prototypes
・Cost, schedule, man-power
estimation
・Configuration identification
LCGT Development Phases
― Formal Design Reviews ―
We are here!
Conceptual Preliminary
Design
Design
System
Requirement
Review
Detailed
Design
Construction
&
Commissioning
Operation
Critical
Design
Review
Preliminary
Design
Review
Initial
DATA
Review
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
LCGT Development Phases
― cost profile ―
Cost
Problem with Japanese
funding system
Conceptual Preliminary
Design
Design
Detailed
Design
Construction
&
Commissioning
Operation
Actual
Ideal
Frequency Total cost of
design change
B
A ×B
Conceptual
Design
Preliminary
A
Cost of
design
change
A
Detailed
Design
Construction
B
A ×B
Conceptual
Design
Preliminary
Design
Detailed
Design
Construction
PERT:
Program Evaluation
and
Review Technique
Start
PERT Chart for LCGT
Goal
: Critical path
Task <5> can start only after tasks <2> and
<3> have been completed.
Task
ID number
Required
duration
(weeks)
Start date
Finish date
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
- minimum documents
- minimum red-tape meetings or
duplicated reviews
- quick decisions
- reliable interface control
Conclusions-3
Summing up:
Smaller, Faster, Better!
END