Transcript Document

DS8: Overall System Design &
Preliminary SKA Plan :
DS 1
Management of the Design Study “SKADS”
DS 2
Science and
Astronomical Data
Simulations
DS4
Technical Foundations and
Enabling Technologies
DS-5
Aperture Array
Demonstrator
“EMBRACE”
DS 3
The Network and
its Output Data
DS 7
Assessment of Preparatory
Work and Studies
DS 8
Overall System Design and
Preliminary SKA Plan
AvA/1203
DS 6
Cylindrical Concept
Demonstrator
DS8: the final product!
EC SKADS proposal March 2004
“At the end of DS7 a preferred design to
satisfy the multi-field-of-view requirement will be
selected and we will then proceed to a single
system design (DS8)”.
Now need to cohere with the reference design
DS8: the final product!
• Whole point of the Design Study:
– to find a way to build the SKA which convinces international
community and funding agencies
– the DS(-T)s are not are ends in themselves
• Importance of Ownership of the results
– we all have to “own” the final product
– we need a scheme which produces that and allows all to
contribute
– collegiality is very important
Proposal in accepted Zandaam (February 2005):
DS8 should not be a separated effort but a joint one, carried
out by those who have led the work
DS8: the final product
• “The aim is to produce
i) an “end-to-end” architectural and functional
design for the preferred concept and a costing,
paying attention to the civil works required for
the array;
ii) a study of funding sources and
iii) a preliminary project plan.”
• “Requires us to pull together the results from the entire work
programme and to incorporate technology foresight.”
• “The deliverable will take the form of a Square Kilometre Array
“White Paper” that will contain a preliminary project plan to be
submitted to the International SKA Steering Committee in 2008”.
Now have to cohere with international project plan
DS8:deliverables and timelines
DS8-T1 Overall System Design
T0+46
Report
DS8-T2 Preliminary SKA Plan
T0+47.5
Report
Overall System Design
and Preliminary SKA Plan
T0+ 47.5
Combined report
“This DS will not be required until very close to the end of the
study and its format and structure will be decided closer to the
time”. (EC SKADS PROPOSAL)
SKA timeline
Initial concept
First SKA
Working
Group
92
96
ISSC
MoA-1
2000
2000
Feasibility
study
International
Legal
review of
ISSC
Entity for SKA
design
MoA-2
Formed
Science
Site
Site
Case
ranking
Selection
published
04
05
Concept
exposition
Select
Reference
Design
06
07
SKADS
08
09
‘1% SKA’
Science
‘10% SKA’
Science
……
10
Define SKA
System
Design & Build
SKA pathfinders
ATA, KAT & xNTD
1% SKA
LOFAR
10% SKA at 100 MHz
SKA
Complete
14
18
Phase 2
Build
50% SKA
Phase 1
Phase 3
Build
Build
10% SKA 100% SKA
22
DS8: the final product
• DS8-T1 Overall system design (UMAN): to optimise the
station architectural design and in terms of scalability, functionality and
to minimise the cost vis-à-vis anticipated technology changes; to
produce an “end-to-end” architectural and functional design for the
preferred concept.
The principal objectives are:
1) to follow the advice of the Design Review Committee (DS7) and to
use the outcomes of the technical preparatory work to establish a
multi-parameter cost equation and its derivatives for a range of station
technologies/architectures
2) to examine the most cost-effective upgrade routes, since SKA’s
scientific output will be limited by the processing power available at
any given time.
DS8: the final product!
• DS8-T2: Preliminary SKA plan (ASTRON): to provide an
overview of the plan from design to construction, including a study
of funding sources.
There are two main products: an organisational plan and an
operational plan.
Other issues to be considered include:
1) industrial partnerships
2) an IPR plan
3) funding mechanisms
4) links with international SKA effort and possibility of a “hybrid”
design involving more than one collector technology.
5) maintenance requirements of the SKA
6) a reliability analysis (assessment of failure modes) of the SKA
7) a risk analysis for the entire plan
The DS8 TEAM
•
•
P. Wilkinson (UMAN) - coordinator
The SKADS Executive Committee
- The Chairman, vice-chairman of Board
- The Management Team
- The leaders of the DS
- “At large”: S. Rawlings (SWG)
PLUS – as appropriate
•
Members of SKADS Board - Experience of funding/politics/governance
(Experience of industrial consultants via DS7 final report)
(Experience of ALMA & LOFAR via DS7 final report)
•
European SKA outreach members – report production skills
DS8: the final product!
• Producing the final report:
– steps towards this must be organically linked in with overall
management and month-month coordination of the DS
– it is the culmination of these processes, not a separate entity
-- the report to include all the EC requirements e.g. including
DS2 results on science scope and technical specification
-- form of links between DS-Ts within each DS and between DS
not yet crystallized
 premature to be prescriptive on how the “DS8 team” will work
BUT……
• SKADS is self-sufficient for producing DS8
• SKADS DS8 team must work closely with ISPO
END
SKA timeline
Initial concept
First SKA
Working
Group
92
96
ISSC
MoA-1
2000
2000
Feasibility
study
International
Legal
review of
ISSC
Entity for SKA
design
MoA-2
Formed
Science
Site
Site
Case
ranking
Selection
published
04
05
Concept
exposition
Select
Reference
Design
06
07
SKADS
08
09
‘1% SKA’
Science
‘10% SKA’
Science
……
10
Define SKA
System
Design & Build
SKA pathfinders
ATA, KAT & xNTD
1% SKA
LOFAR
10% SKA at 100 MHz
SKA
Complete
14
18
Phase 2
Build
50% SKA
Phase 1
Phase 3
Build
Build
10% SKA 100% SKA
22
The SKADS Executive Committee
• Monitor progress of the SKADS activities against the milestones
agreed by the Board.
• Receive progress and financial reports of all activities via the
SMT.
• Receive periodic reports from the Design Study Task leaders.
• Act on strategic decisions and recommendations made by the
SKADS Board.
• Report to the Board on a regular basis on the progress of
SKADS and on any strategic issues requiring attention.
• Chairman, vice-chairman of Board, the SKADS management
team, leaders of the Design Study Tasks
Comments from Dec 20/21 Zandaam Meeting
• System-engineering tasks in DS3/DS4/DS5/DS6 all to
be coordinated by the Project Engineer
• A “system design” team must emerge – from system engineering
teams in all other places – linked by the Project Engineer.
• In LOFAR: the system architecture role is different from project
engineers
the coordinating role
the architecture role
 the DS7 Project Engineer
 the DS8 task
• In ALMA there is an “integrated project team” reporting to central
management which includes the project engineer who is responsible
for all technical work - supported by a lot of system engineers on the
various projects.