Assembly, Integration & Verification
2015 SKA Engineering Meeting
Richard Lord
11 November 2015
Overview
• About the AIV Consortium
• Current Status of Major Milestones
•
•
•
•
•
Roll-Out Planning
Integration & Verification Planning
Product Hand-Over Planning
Test Procedure Planning
MeerKAT Precursor Integration Planning
• Risks
AIV Consortium Member Organisations
SKA Office Contacts
Element Project Manager:
Element Systems Engineer:
Architecture Group:
Project Scientist:
Operations Planning Group:
Peter Hekman
David Bolt
Gie Han Tan
Tyler Bourke
Antonio Chrysostomou
Major Milestones - Stage 1
#
Stage 1: Milestone Description
1
t0
Nov 2013
2
t0 + 12w
Jan 2014
3
Verification Requirements
Apr 2014
4
Roll-Out Plan (Draft)
Jun 2014
5
Input to Re-Baselining Exercise
Sep 2014
6
PDR Submission
Nov 2014
7
PDR Closure
Feb 2015
PDR Baseline completed in eB.
Due Date
Major Milestones - Stage 2
#
Stage 2: Milestone Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Kick-off
Telescope Preliminary I&V Plan
SEMP and PMP Alignment
Product Hand-Over Checklist
Updated Cost Model
MeerKAT Precursor ICDs
Telescope Roll-Out Plan (Next Release)
Telescope Test Procedures (Draft)
Precursor Integration Plan and ICDs
Telescope Detailed I&V Plan
CDR Data Pack Finalisation (Element CDR)
Telescope AIV Resource Plan
Telescope Test Procedures (Final)
CDR Data Pack Update (for System CDR)
CDR Submission (for System CDR)
CDR Closure (for System CDR)
Due Date
Apr 2015
Jul 2015
Jun 2015
Jul 2015
Aug 2015
Aug 2015
Sep 2015
Dec 2015
Mar 2016
Jun 2016
Dec 2016
Mar 2017
Apr 2017
May 2017
Jul 2017
Oct 2017
Roll-Out Planning
• Forms the basis for the delivery of products and
planning of integration & verification activities.
• Considers:
– Sequencing of implemented functionality
– Scale: How many Dishes / Stations deployed and when
– Integration of MeerKAT Precursor into SKA1 MID
• Sequential process – early retirement of risks
• Achieved by specifying “Array Releases”
How hard can it be?
“Getting to AR1” Session:
• Today (Wednesday):
12h30 – 15h00, Breakout 2 (Merlot)
• Friday:
8h30 onwards, Breakout 2 (Merlot)
Released Array
• Described by:
– Date
• When all required products have been installed, i.e. not necessarily integrated into
Telescope System
–
–
–
–
Number of Dishes / Stations
Array Capability → Determines back-end Element functionality
Key Engineering Goals
Science Capability
• Used by AIV Team and Science Validation Team
– Verification of Level-1 (System Level) Requirements
– Validation of Science Requirements
V-Diagram
Performed with
Array Releases
User Requirements Validation
System Verification
Telescope
Requirements
Specification
Science
Validation
Telescope
AIV
Element Verification
Element
AIV
gn
si
rif
ic
a
Component
Verification
Component
Specification
Component
AIV
Design &
Manufacture
Time
Ve
De
Element
Requirements
Specification
tio
n
Operational
Concept Description
Integration Test Facility (ITF)
• Multiple ITFs
– At Element Level or lower
• All over the world. Rely heavily on simulators/emulators. No AIV involvement.
– At System Level
• End-to-End line-up of Level-2 products. Possibly one ITF at each Host Country.
– On Site
• Conceptually possible to have an on-site ITF, e.g. in the form of an Engineering Array.
• System-Level ITF used for:
–
–
–
–
–
System Level Design Qualification
Verification of interfaces between Level-2 products
Debugging, troubleshooting, development work, etc
Testing of hardware/firmware/software upgrades during Constr. Phase
Knowledge transfer (between contractors, engineers, AIV Team, etc)
• Laboratory Verification Event (LVE)
– Verification of end-to-end functionality and performance required for
Array Release 1
SKA1 MID Roll-Out Plan
T0 + 12
T0 + 24
T0 + 36
T0 + 48
T0 + 60
MeerKAT Precursor
Site
Number of SKA1 Dishes deployed
1
Dish
2
Dishes
Integration Test Facility (ITF)
Front-End Integration
INFRA, SaDT, DISH
Lab
Integration Events
Dish Receiver, SaDT,
CSP, TM, SDP
4
Dishes
AR1
AR2
AR3
AR4
Dish
PRR
Quality
Gate
LVE
LVE2
LVE3
LVE4
SKA1 LOW Roll-Out Plan
T0 + 12
T0 + 24
T0 + 36
T0 + 48
T0 + 60
Site
Number of SKA1 Stations deployed
1
Station
Front-End Integration
INFRA, SaDT, LFAA
Integration Test Facility (ITF)
4
Stations
2
Stations
AR2
AR3
AR4
LFAA
PRR
Quality
Gate
Lab
Integration Events
LVE
Station Beamformer and
Digitiser, SaDT,
CSP, TM, SDP
AR1
LVE2
LVE3
LVE4
SKA1 MID Dish Roll-Out
MeerKAT Science Programme
MeerKAT Integration
Start Early Science
T0
T0 + 1
Q1
Q2
Q3
Q4
Q1
T0 + 2
Q2
Q3
Q4
Q1
T0 + 3
Q2
Q3
Q4
Start Full Science
T0 + 4
Q1
Q2
Q3
Q4
Q1
T0 + 5
Q2
Q3
Q4
250
Array Releases
200
150
100
LVE
= Lab Verification Event
1
= 8 Dishes
2
= 64 Dishes
3
= 128 Dishes
4
= 133 + 64 Dishes
MeerKAT Dishes
New SKA1_MID Dishes
50
Dish
PRR
1st Dish
0
LVE
Start Construction SKA1
1
2
3
4
End Construction SKA1
SKA1 LOW Station Roll-Out
Start Early Science
T0
T0 + 1
Q1
Q2
Q3
Q4
Q1
T0 + 2
Q2
Q3
Q4
Q1
Start Full Science
T0 + 3
Q2
Q3
Q4
Q1
T0 + 4
Q2
Q3
Q4
Q1
T0 + 5
Q2
Q3
Q4
4
500
Array Releases
400
300
1
= 16 Stations
2
= 64 Stations
3
= 256 Stations
4
= 512 Stations
3
200
LVE
= Laboratory
Verification
Event
100
1st
Station
2
LVE
1
0
Start Construction SKA1
End Construction SKA1
Software Release Management
T0 + 12
T0 + 24
T0 + 36
Integration Test Facility (ITF)
Site
AR1
T0 + 48
AR2
AR3
AR4
On-Site Environment
(Software acceptance tested with production hardware and firmware)
Software Releases
LVE
Laboratory Integration Environment
(Software verified against real hardware and firmware)
Software Releases
Arbitrary Location
T0 + 60
Issues
Development Environment
(Software qualified against simulators)
No Change-Control
Under Change-Control
Issues
Integration & Verification Planning
1
· System Requirements
Verification
Requirements
3
I&V Plan
·
·
·
·
·
·
Hosting Agreements
Telescope Verification Plans
Early-Science Plans
Commissioning Plans
SKAO Input
Consortia Input
2
Roll-Out Plan
· SKAO Input
· Consortia Input
Contains:
· Integration Events
· Verification Events
· Resources
· ...
I&V Planning
Integration / Verification Event
SaDT.NSDNLab ver - DISH, CSP, TM, SDP
TM.TELMGMT - DISH.LMC
TM.TELMGMT - SaDT.SAT.LMC
DISH Receiver - SaDT.SAT
TM.TELMGMT - CSP.LMC
SaDT.DDBHLab ver - CSP - DISH
DISH Receiver - CSP.CBF
TM.TELMGMT - SDP.LMC
CSP.CBF-SDP.Data Proc
Lab System Line up C&M
Lab System Line up Data
Lab System 4 input Verification
INFRA - DISH
SaDT.NSDN - TM / DISH
TM.TELMGMT - SaDT.SAT.LMC
TM.TELMGMT - DISH.LMC
DISH Receiver - SaDT.SAT
SaDT.NSDN - TM / CSP
TM.TELMGMT - CSP.LMC
SaDT.DDBH - CSP - DISH
DISH Receiver - CSP.CBF
2nd DISH Integration to INFRA, SaDT, CSP
INFRA Handover
SaDT handover
DISH Handover
TM Handover
CSP Handover
Dish C&M
Freq range, Sensitivity
RFI Detection
Channelisation
Basic Interferometry
Correlator Products
Displays
EMI / EMC
Environmental
4 DISH Integration to INFRA, SaDT, CSP
SaDT.NSDN - TM / SDP
TM.TELMGMT - SDP.LMC
SaDT CSP-SDPInitial local link
CSP.CBF-SDP.Data Processor
INFRA Handover
SaDT handover
DISH Handover
TM Handover
CSP Handover
SDP Handover
Channelisation
Basic Interferometry
Correlation Products
Imaging
EMI / EMC
1
I.Lab.1
I.Lab.2
I.Lab.3
I.Lab.4
I.Lab.5
I.Lab.6
I.Lab.7
I.Lab.8
I.Lab.9
I.Lab.10
I.Lab.11
V.Lab.2.1
I.D1.1
I.D1.2
I.D1.3
I.D1.4
I.D1.5
I.D1.6
I.D1.7
I.D1.8
I.D1.9
2 Dish Integration
V.D1.1.1
V.D1.1.2
V.D1.1.3
V.D1.1.4
V.D2.1.5
V.D1.2.1
V.D1.2.2
V.D1.2.3
V.D2.2.1
V.D2.2.2
V.D2.2.3
V.D2.2.4
V.D2.3.1
V.D1.3.1
4 DISH Integration
I.D4.1
I.D4.2
I.D4.3
I.D4.4
V.D4.1.1
V.D4.1.2
V.D4.1.3
V.D4.1.4
V.D4.1.5
V.D4.1.6
V.D4.2.1
V.D4.2.2
V.D4.2.3
V.D4.2.4
V.D4.3.1
2
3
4
*
*
*
5
6
7
Months since T0
9
10
11
8
12
13
14
15
16
17
18
19
20
Laboratory
*
• Integration Events
• Verification Events
*
*
*
*
*
*
*
*
*
*
*
*
•
•
•
•
*
*
Early Site, 1-2 Dishes
*
*
*
*
*
*
*
*
*
*
*
Start date
Duration
Resources
Prerequisites
*
*
*
*
*
• Each event is a workpackage
that can be project-managed
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Site, 4 Dishes
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Product Hand-Over Planning
Objectives are to ensure that:
• A well-defined development process was followed for the
product.
• The product meets its technical specifications,
documented by Qualification Test Results (QTRs) and
Acceptance Test Results (ATRs).
• The product can be supported and maintained after
hand-over.
• The product is successfully installed on-site.
• The logistic support development for the product is in
process.
What level of product integration is required from the AIV
Contractor?
Installation, Integration, Verification
AIV Contractor Responsibility
Product Contractor Responsibility
Operations Team Responsibility
Product Hand-Over
System Hand-Over
Product
Hand-Over
Review
no
Responsibility
reverts to OEM
yes
Shipment
Readiness
Review
yes
Ship to Site
Install on Site
Product
Hand-Over
Review
yes
Integrate with
SKA1 Telescope
System
Verify
SKA1
Telescope
System
yes
no
Responsibility
reverts to OEM
no
Responsibility
reverts to OEM
Product
Hand-Over
Review
no
Responsibility
reverts to OEM
no
Resolve Issue
yes
Operate
SKA1 Telescope
System
Test Procedure Planning
System
specified by
Requirements
verified by
Verification
Requirements
employs
fulfilled at
Test
Procedures
Verification
Events
employs
Test
Configurations
formed by
Systems Engineering Tool
Test
Equipment
MeerKAT Integration Planning
MeerKAT Integration: ECP 150006
• Replace MeerKAT’s Receivers (known as “Digitisers”) with
SKA1_MID’s Receivers
• Replace MeerKAT’s TFR distribution to each MeerKAT Dish with
SKA1_MID’s STFR distribution
• Does not consider replacement of MeerKAT’s Feeds
L-Band Receiver (“Digitiser”)
Limited space inside SDC
25 U rack space
Risks
• Roll-Out Plan not yet mandatory for Design Consortia
• Support of the System-Level ITF not yet mandatory for
contractors
• Late release of software/firmware functionality (TM, CSP,
SDP) during Construction Phase
– Knock-on effect on Array Releases
– Integration Test Facility would reduce the risk of on-site issues
• Underestimating scale and complexity of MeerKAT
Precursor Integration
• Participating organisations not delivering on their
contributions on time, or to an acceptable level of quality
• Staff continuity
Thank You