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SKA Systems Engineering: From PDR to Construction

SKA Systems Engineering: From PDR to Construction

In a project of the complexity of the Square Kilometre Array (SKA), it is very important to be very observant of the different requirements for the SKA telescopes, and how they are implemented by the different sub-systems. And because the design of the SKA is evolving, the need to assess the impact of design changes, and potential trade-offs, is more relevant than ever. In this talk I will present how the SKA Organisation is leading the Systems Engineering work of the different consortia, and how we are using Model Based Systems Engineering (MBSE) to integrate the design inputs from the sub-systems, and be able to keep a Systems view that ensures that the element designs are sound, and really comply with the stringent requirements posed by the SKA.

Juande Santander-Vela

October 23, 2014
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  1. SKA Systems Engineering:
    from PDR to Construction
    Spain SKA Day, October 23rd, Granada

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  2. Spain SKA Day, October 23rd, Granada
    • Who am I?

    • What do we (SKAO SEs) do?

    • When does all this take place?

    • To CDR, and Beyond…

    • Accomplishments & Ongoing Activities

    • And Industry?

    • Conclusions
    Talk Outline

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  3. Spain SKA Day, October 23rd, Granada
    Who am I?

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  4. Spain SKA Day, October 23rd, Granada
    • Systems Engineer for the SDP/TM elements

    • Former VIA-SKA Project Manager

    • VLT Archive Applied Scientist, later ALMA
    Science Archive Front-/Back-end
    Developer at ESO

    • Ph.D. in Radio Astronomical data archives
    and Virtual Observatory

    • Software Analyst/Manager
    Who am I?

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  5. Spain SKA Day, October 23rd, Granada
    • Systems Engineer for the SDP/TM elements

    • We are guardians to ensure that the SKA:

    • is buildable

    • operates as intended

    • as a system, is not dominated by a
    particular element

    • design changes keep it that way
    Who am I?

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  6. SKAOffice(RevN) -
    JCG.vsd
    2014-04-14
    Deputy Director-
    General and
    Head of Project
    (Alistair McPherson)
    Director-General
    (Phil Diamond)
    Project Officer Industry Liaison
    Officer
    (Phil Crosby)
    In-Kind Contribution
    Head of Admin and
    Legal
    (Colin Greenwood)
    Finance Manager
    (Helen MacDonald)
    HR Manager
    (Andrew Taylor)
    IT Manager
    (Paul Furness)
    Deputy IT
    Manager
    (tbc)
    Executive Officer
    (Sarah-Jane Pritchard)
    Dpty Comms. &
    Outreach Manager
    (Mathieu Isidro)
    Director of Policy
    Development
    (Simon Berry)
    Engineering
    Project Manager
    Dishes
    (Mark Harman)
    Engineering
    Project Manager
    CSP and LFAA
    (Kobus Cloete)
    Engineering
    Project Manager
    SaDT
    (Philip Gibbs)
    System Engineer
    Verification
    System Engineer
    RAM and ILS
    (Cornelius Taljaard)
    System Engineer
    Dishes
    (Andrea Cremonini)
    System Engineer
    LFAA
    (Maria Labate)
    System Engineer
    CSP
    (Marco Caiazzo)
    System Engineer
    SaDT
    (Rodrigo Olguin)
    System Engineer
    SDP/Telescope Mgr
    (Juande Santander)
    System Engineer
    Analysis
    System Engineer
    Modelling
    Configuration
    Manager
    (Susan Nel)
    Engineering
    Project Manager
    Site and
    Infrastructure
    (Martin Austin)
    Architect
    (Tim Cornwell)
    Deputy Architect
    (Peter Dewdney)
    Domain Specialist
    Signal Processing
    (Wallace Turner)
    Domain Specialist
    SaDT and
    Synchronisation and
    Timing
    (Roshene McCool)
    Domain Specialist
    RF/Dish
    (Gie Han Tan)
    Project Scientist
    (Jimi Green)
    Project Scientist
    (Tyler Bourke)
    Project Scientist
    (Jeff Wagg)
    Admin
    Assistant
    (Donna Parkinson)
    Domain Specialist
    AAandPAF
    (Mark Waterson)
    Chief System
    Engineer
    (Tim Stevenson)
    Communications
    & Outreach Manager
    (William Garnier)
    IT Assistant
    (Nathan Cunningham)
    Head of Policy
    Development
    (WANG Qiming)
    Spectrum
    Manager
    Power Engineer
    (Adriaan Schutte)
    Office Manager
    and PA to D-G
    (Greta Collins)
    Science Director
    (Robert Braun)
    Project Controller
    Domain Specialist
    Operations
    AIV Work
    Package Manager
    (Peter Hekman)
    Engineering
    Project Manager
    SDP and Telescope
    Manager
    (Miles Deegan)
    Receptionist
    (Val Gresley-Jones)
    0.5FTE
    Receptionist
    (Anne Curran)
    0.5FTE
    Domain Specialist
    Computing

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  7. Spain SKA Day, October 23rd, Granada
    What do we do?

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  8. Spain SKA Day, October 23rd, Granada
    Systems Engineering
    Primer

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  9. Systems Engineering Primer

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  10. Systems Engineering Primer
    Science WGs
    AG group
    SE group

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  11. Systems Engineering Primer

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  12. Systems Engineering Primer
    SE group
    AG group
    Consortia

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  13. Systems Engineering Primer

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  14. Systems Engineering Primer

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  15. Systems Engineering Primer

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  16. Systems Engineering Primer: Docs

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  17. Systems Engineering Primer: Docs

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  18. Systems Engineering Primer: Docs

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  19. Systems Engineering Primer: Docs

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  20. Spain SKA Day, October 23rd, Granada
    When does all this
    take place?

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  21. Spain SKA Day, October 23rd, Granada
    The SKA1 timeline

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  22. 2016
    2015 2017 2018 2019 2020 2021 2022 2023
    2014
    High/level/design
    Rebaselining/submissions/(RBS)
    Preliminary/Design/Review/(elements)
    Detailed/design
    Prototype/systems/deployed
    Critical/Design/Review
    SKA1/construction/approved
    Procurement
    SKA1/early/science
    SKA1/construction
    SKA2/detailed/design
    Design/consortia/start
    SKA2/procurement
    SKA2/construction/starts
    SKA2/concept/development
    Board/RBS/approval 3K5/Mar/15
    15K22/Sep/14
    1/Nov/13
    PreKconstruction/Stage/1
    PreKconstruction/Stage/2
    Production*Readiness*Review*(4*dish*array)
    Construction*Readiness*Review*
    (1*dish*line9up)
    New/SKA/Organisation/in/place
    Key/Doc/Set/&/Prospectus
    Formal/negotiations
    Ratification/of/Agreements Organisation/has/minimum/no./Members/with/Agreements/ratified
    Agreements/in/Key/Doc/Set/signed
    Andrea/Casson,/SKAO/Project/Controller,/Sept/2014
    System/PDR
    Integration/testing/on/site
    Advanced/Instrumentation/Prog.
    KEY:/Blue/=/SKA1/science/&/engineering;/orange/=/policy;/green/=/SKA2;/milestones*in*italics*=/proposals/under/discussion
    The SKA1 timeline

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  23. Spain SKA Day, October 23rd, Granada
    The SKA1 timeline
    Issue%Baseline%
    Design
    Science%
    Assessment%
    Workshops
    Proposal%
    Feedback
    Level%1%
    Requirements%
    Feedback
    Science%
    Conference
    Engineering%
    Meeting
    Engineering%Change%Proposals
    Designs%&%
    Costs
    SKAO%Review
    Technical%
    Advice
    (working%
    groups)
    SEAC
    Board
    Consortium%Design%Activities
    Level%0%
    Requirements
    Brief%
    SEAC
    2013 2015
    Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar
    2014
    PDR
    Science
    Review%Panel
    Science
    Review%
    Panel
    Issue%Baseline%
    Design
    Science%
    Assessment%
    Workshops
    Proposal%
    Feedback
    Level%1%
    Requirements%
    Feedback
    Science%
    Conference
    Engineering%
    Meeting
    Engineering%Change%Proposals
    Designs%&%
    Costs
    SKAO%Review
    Technical%
    Advice
    (working%
    groups)
    SEAC
    Board
    Consortium%Design%Activities
    Level%0%
    Requirements
    Brief%
    SEAC
    2013 2015
    Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar
    2014
    PDR
    Science
    Review%Panel
    Science
    Review%
    Panel

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  24. Spain SKA Day, October 23rd, Granada
    The SKA1 timeline
    Issue%Baseline%
    Design
    Science%
    Assessment%
    Workshops
    Proposal%
    Feedback
    Level%1%
    Requirements%
    Feedback
    Science%
    Conference
    Engineering%
    Meeting
    Engineering%Change%Proposals
    Designs%&%
    Costs
    SKAO%Review
    Technical%
    Advice
    (working%
    groups)
    SEAC
    Board
    Consortium%Design%Activities
    Level%0%
    Requirements
    Brief%
    SEAC
    2013 2015
    Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar
    2014
    PDR
    Science
    Review%Panel
    Science
    Review%
    Panel
    !! !!
    !! !!
    !!
    !!
    !!(43)
    !!
    !!
    !!
    !!
    Issue%Baseline%
    Design
    Science%
    Assessment%
    Workshops
    Proposal%
    Feedback
    Level%1%
    Requirements%
    Feedback
    Science%
    Conference
    Engineering%
    Meeting
    Engineering%Change%Proposals
    Designs%&%
    Costs
    SKAO%Review
    Technical%
    Advice
    (working%
    groups)
    SEAC
    Board
    Consortium%Design%Activities
    Level%0%
    Requirements
    Brief%
    SEAC
    2013 2015
    Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar
    2014
    PDR
    Science
    Review%Panel
    Science
    Review%
    Panel

    View Slide

  25. The SKA1 timeline
    Issue%Baseline%
    Design
    Science%
    Assessment%
    Workshops
    Proposal%
    Feedback
    Level%1%
    Requirements%
    Feedback
    Science%
    Conference
    Engineering%
    Meeting
    Engineering%Change%Proposals
    Designs%&%
    Costs
    SKAO%Review
    Technical%
    Advice
    (working%
    groups)
    SEAC
    Board
    Consortium%Design%Activities
    Level%0%
    Requirements
    Brief%
    SEAC
    2013 2015
    Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar
    2014
    PDR
    Science
    Review%Panel
    Science
    Review%
    Panel
    Level%1%
    Requirements%
    Feedback
    Engineering%
    Meeting
    Engineering%Change%Proposals
    Designs%&%
    Costs
    SKAO%Review
    Technical%
    Advice
    (working%
    groups)
    SEAC
    Boar
    Consortium%Design%Activities
    Level%0%
    Requirements
    Brief%
    SEAC
    Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar
    PDR

    View Slide

  26. • Formed by External Reviewers, AG
    representative, SE representative, PM,
    Observers

    • Chaired by a selected External Reviewer

    • SKAO Project Manager acts as Secretary

    • SKAO personnel contributes to OAR

    • Consortia respond to Consolidated OAR
    before PDR review

    • Face-to-face for outstanding actions, 1-2 days
    PDR panels and process

    View Slide

  27. • Element overall design report.

    • Specific design reports for all
    second tier subsystems (the
    Element being the first tier), including
    manufacturing/procurement
    approach, transport, installation,
    verification, support…

    • Finite element models (if needed).

    • Software architecture models and
    use cases.

    • Parametric models.

    • Analysis reports: Finite element
    modelling (including all mechanical
    and thermal load cases), thermal
    analysis, fluid dynamics, RFI/EMC
    analysis, safety analysis, hazard
    analysis…

    • Cost analysis (development,
    construction, verification,
    commissioning & steady state ops).

    • Preliminary construction plans.
    • Configuration items list.

    • Compliance matrix.

    • Preliminary maintenance plan.

    • Preliminary verification plan.

    • Schedule estimate for construction.

    • High level risk register.

    • Draft Statement of work for the
    construction of the Element.

    • Draft technical specifications for
    the construction of the Element.
    PDR documentation

    View Slide

  28. • Interface Control Documents (ICDs)

    • Owned by the SKAO, developed
    between the Consortia

    • Technology Readiness Level Assessment

    • Controlled through Risk Register right
    now
    PDR documentation (in parallel)

    View Slide

  29. Spain SKA Day, October 23rd, Granada
    Meantime…

    View Slide

  30. Spain SKA Day, October 23rd, Granada
    Rebaselining
    SKA1

    View Slide

  31. Spain SKA Day, October 23rd, Granada
    • Cost cap approved for SKA1 Construction:

    650 M€

    • Need to re-align design with costs (CAPEX
    and OPEX), and science priorities

    • Processed owned by Architecture Group

    ➡ Assisted by Systems Engineering Group

    • Transformational science is a top priority

    • Big ECP for changing baseline design
    Rebaselining SKA1

    View Slide

  32. Spain SKA Day, October 23rd, Granada
    • The new baseline design will be the new
    stable basis for Stage 2 design.

    • PDR to be done on pre=rebaselining
    submissions

    ➡ Potential ∆PDR if significant changes
    needed to design

    • Work from PDR to CDR based on new
    baseline.
    Rebaselining SKA1

    View Slide

  33. Spain SKA Day, October 23rd, Granada
    To CDR and Beyond

    View Slide

  34. • Most likely, same as for PDR: formed by
    External Reviewers, AG representative, SE
    representative, PM, Observers
    CDR panels and process

    View Slide

  35. • Complete documentation for
    Element procurement: SoW, specs,
    drawings & ICDs.

    • Specific design reports for all
    subsystems, including transport,
    integration & verification.

    • All finite element models.

    • Software architecture models &
    use cases

    • Software libraries required to
    demonstrate compliance

    • Software configuration information
    for demonstration of compliance.

    • Parametric models used for design
    optimization.

    • Analysis reports: similar to PDR one,
    with ops & construction/assembly.

    • Integrated Logistics (RAMS/FMECA)
    report

    • End-to-end detailed cost breakdown.

    • Construction plan, with
    acceptance test plan and
    procedures.

    • Operations (including maintenance) plan
    • Logistics requirements for
    construction, training

    • Configuration items list

    • Schedule for construction.

    • Detailed risk register.
    CDR documentation

    View Slide

  36. Spain SKA Day, October 23rd, Granada
    • SKA Board to approve SKA1 construction.

    • Later comes Tender and Procurement:

    • Rules being defined right now (see Phil’s talk)

    • Cannot assume same consortia will
    undertake packages… or package structure
    will remain the same

    • Later Construction, Commissioning, Early Science…
    Beyond CDR…
    Solid CDR
    crucial!

    View Slide

  37. 2016
    2015 2017 2018 2019 2020 2021 2022 2023
    2014
    High/level/design
    Rebaselining/submissions/(RBS)
    Preliminary/Design/Review/(elements)
    Detailed/design
    Prototype/systems/deployed
    Critical/Design/Review
    SKA1/construction/approved
    Procurement
    SKA1/early/science
    SKA1/construction
    SKA2/detailed/design
    Design/consortia/start
    SKA2/procurement
    SKA2/construction/starts
    SKA2/concept/development
    Board/RBS/approval 3K5/Mar/15
    15K22/Sep/14
    1/Nov/13
    PreKconstruction/Stage/1
    PreKconstruction/Stage/2
    Production*Readiness*Review*(4*dish*array)
    Construction*Readiness*Review*
    (1*dish*line9up)
    New/SKA/Organisation/in/place
    Key/Doc/Set/&/Prospectus
    Formal/negotiations
    Ratification/of/Agreements Organisation/has/minimum/no./Members/with/Agreements/ratified
    Agreements/in/Key/Doc/Set/signed
    Andrea/Casson,/SKAO/Project/Controller,/Sept/2014
    System/PDR
    Integration/testing/on/site
    Advanced/Instrumentation/Prog.
    KEY:/Blue/=/SKA1/science/&/engineering;/orange/=/policy;/green/=/SKA2;/milestones*in*italics*=/proposals/under/discussion
    The SKA1 timeline

    View Slide

  38. Spain SKA Day, October 23rd, Granada
    Accomplishments &
    Ongoing Activities

    View Slide

  39. SKA Engineering Meeting 2014

    View Slide

  40. • Great technical progress seen in the last year

    • Parametrics models, SysML diagrams,
    Product Trees, Interface Control Documents…
    progressing nicely across consortia

    • Better understanding of key architectural issues

    • Pre-PDR submissions clarified after
    Engineering Meeting
    Element Progress
    Not talking about
    building the SKA,
    but building the SKA!

    View Slide

  41. • One for SKA1-Low, one for SKA1-Mid/Survey

    • Focused on technical & architectural
    hotspots

    • Calibration feedback

    • SDP location

    • Time reference & definitions

    • Other hotspots as identified with consortia
    Telescope Architecture Teams

    View Slide

  42. • Uses Science Prioritization Use Cases

    • Drives models for

    • SDP sizing

    • Power consumption

    • Telescope scheduling

    • Used to bring insight into feasible ways to
    operate the telescope
    Year in the Life of SKA1

    View Slide

  43. • Further specialization of the ConOps

    • Work started by NRAO contractors

    • Will provide SKAO with Operations Model
    by end 2014

    • Will help filling in missing details that can
    impact design
    Operations Concept Document

    View Slide

  44. Spain SKA Day, October 23rd, Granada
    And Industry?

    View Slide

  45. • Varied industry involvement:

    • Unpaid Consultants (Roadmaps, Trends)

    • Paid Contractors (SE, PM, at this stage)

    • Remember: design work cannot be
    predicated on single-vendor solutions

    • Industry engagement with consortia done by
    consortia themselves

    • SKAO can help get people in touch
    And Industry?

    View Slide

  46. • Standards-based approach well regarded

    • Model-Based System Engineering (SysML)
    currently standard in SKAO, and many
    consortia

    • Keep in touch!
    And Industry?
    Phil Crosby,
    Industry Liaison

    View Slide

  47. Spain SKA Day, October 23rd, Granada
    Conclusions

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  48. • Lots to do before Procurement!

    • Timeline is king, and we mean to keep it that way

    • Progress, don’t dwell on things

    • We are here to help consortia help us

    • SKA1 must be transformational for science

    • Industry should be considering potential
    applications now, to be able to be involved later
    Conclusions
    SKA means the industrialization of Radio Astronomy

    View Slide

  49. • Lots to do before Procurement!

    • Timeline is king, and we mean to keep it that way

    • Progress, don’t dwell on things

    • We are here to help consortia help us

    • SKA1 must be transformational for science

    • Industry should be considering potential
    applications now, to be able to be involved later
    Conclusions
    We will be needing industry, in a big way

    View Slide

  50. Spain SKA Day, October 23rd, Granada
    Thanks for your
    good work!

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  51. Questions?
    Juande Santander-Vela
    [email protected]

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