Page 1
www.thalesgroup.com
THALES GROUP OPEN
Acquisition and Early Evaluation of Architecture with Arcadia and Capella
Stéphane Bonnet Head of Thales Corporate MBSE Coaching
Capella Design Authority
[email protected]
NASA JPL MBSE SYMPOSIUM – JAN 26TH, 2016
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€14 billion in revenues
N°1 worldwide
Payloads for telecom satellites
Air Traffic Management Sonars Security for interbank transactions
N°2 worldwide
Rail signalling systems In-flight entertainment and connectivity
Military tactical radiocommunications
N°3 worldwide
Avionics Civil satellites Surface radars
Thales: A wide spectrum of complex systems
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System Architectural Design
Enterprise Architecting (operational capabilities and
need, orientations, etc.)
Detailed design, development
V&V SW/HW/FM
Architectural Design
Algos,
Real-
time
Analysis,
NF,
Etc.
Multi-
physics:
3D,
power
models,
thermal
models,
etc.
Scope
Method Workbench
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Understand the real customer need
Define and share the solution among stakeholders
Secure SYS/SW/HW engineering, prepare subcontracting
Early evaluate and justify architectural design
Prepare and master V&V
Scope
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Arcadia : A “Simple” Engineering Language
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Tight coupling method/tool
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A practitioner-driven journey started in Thales…
2006 2010 2014 2008 2012 2016
Practitioner-driven
Capella development
Multi-domain Thales working groups on language and method
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… now open source (it’s free!)
Larger industry consortium currently being initiated
SERVICE
PROVIDERS
END-USER
ORGANIZATIONS
COMMUNITIES
RESEARCH &
ACADEMIA
TOOLS & TECHNO
PROVIDERS
Initial 3-year (French) collaborative project
http://www.polarsys.org/capella
Page 9
www.thalesgroup.com
THALES GROUP INTERNAL
Method and Workbench Highlights A COMPREHENSIVE, METHODOLOGICAL, AND TOOL-SUPPORTED APPROACH
Toronto, 2012
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A1 A3
A2
Operational Analysis
WHAT THE USERS/STAKEHOLDERS
NEED TO ACCOMPLISH
Support of discussions
with the customer,
capabilities, scenarios
and processes
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F2
F1
F3 F4
F5
A1 A3
A2
System Need Analysis
WHAT THE SYSTEM HAS TO
ACCOMPLISH FOR THE USERS
Boundaries, external
interfaces, specification,
v&v procedures,
feasibility of requirements
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F2
F1
F3 F4
F5
A1 A3
A2
ViewPoints
C1
C2
C3
F21
F1
F6 F3
F22
Logical Architecture
HOW THE SYSTEM WILL WORK SO
AS TO FULFIL EXPECTATIONS
High-level architecture
description, functional
refinement, architectural
drivers, functional allocation,
first trade-offs,
modes and states analysis
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F2
F1
F3 F4
F5
A1 A3
A2
HOW THE SYSTEM WILL BE
DEVELOPED AND BUILT
Implementation constraints,
reuse, refined trade-offs,
M/T/B strategy,
finalized detailed interfaces
ViewPoints
C1
C2
C3
F21
F1
F6 F3
F22
ViewPoints
C11
C12
C1’
C2
C3
C4
F21
F1
F6 F7
F22
e.g. Processors
e.g. Buses
e.g. SW, HW
components
Physical Architecture
HOW THE SYSTEM WILL BE
DEVELOPED AND BUILT
Implementation constraints,
reuse, refined trade-offs,
M/T/B strategy,
finalized detailed interfaces
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Buy Sub-contract Make Make Buy
Physical Architecture
HOW THE SYSTEM WILL BE
DEVELOPED AND BUILT
Implementation constraints,
reuse, refined trade-offs,
M/T/B strategy,
finalized detailed interfaces
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Focus on Functional Analysis
Ease of modeling, complexity management
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Functional analysis workflows
1
2
Top-down
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2
Bottom-Up
1
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F1
F2
F21
F22
Functional analysis with Capella
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F1
F2
F21
F22 F1
F2
F21
F22
Functional analysis with Capella
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F1
F2
F21
F22
Functional analysis with Capella
F1
F2
F21
F22
F1
F2
F1
F2
F21
F22
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F1
F2
F21
F22
Functional analysis with Capella
F1
F2
F21
F22
F1
F2
F1
F2
F1
F2
F1
F2
F21
F22
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F1
F2
F21
F22
Functional analysis with Capella
F1
F2
F21
F22
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
A A
A
B
A
B
A
A
B
F1
F2
F21
F22
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Architecture (early) evaluation
Parametric analyses, coupling with specialty tools
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Performance
Mass
Safety
…
Architecture early evaluation
Autonomous viewpoints
Birectional coupling with specialty tools
Citrus
simulation
env.
All4Tec
Safety
Architect
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Example1: Capella – Safety Architect (All4Tec)
In Safety Architect, automated generation of fault-trees
In Capella, visualization of fault trees as critical functional chains
In Safety Architect, analysis of block local failure conditions
Functional
Hazard Analysis
(FHA)
Feared event added to Capella dataflows (viewpoint)
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do
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Example 2: Architecture Parametric Analysis
Architecture Dimensioning
Enrich model with consumption
information (Marte-based HW and parametric extension to Capella)
Progressive consolidation of consumptions for each function
Dashboards showing estimations and measures
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Modes and states
Analyzing the variability of the
system during its operation
Not developed here but important… (and addressed)
Model-based V&V
Driving v&v activities by
expected functional content
Product Line
Variability management based
on feature models
Page 28
28
26.01.17
2017 Thales Alenia Space THALES ALENIA SPACE OPEN Ref. = 000x-000xxxxxxx Ref. Modèle = 83230347-DOC-TAS-EN-004
a value-added combination for Space
products engineering
Arcadia and Capella:
M. Reboul, L. Saoud, G. Garcia
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Recursive application brings value in each step
of the engineering chain
Consistent management of engineering data and
production of consistent artifacts
Strong enablers for product line definition and reuse
of building blocks
Architecture early validation and V&V preparation
Key aspects for space systems engineering
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Target systems and modeling activities
End-to-end Space
Systems
• Operational concept definition and refinement
• Ground/board functional allocation trade-off and
interface definition
Production of
consistent artifacts
• System
specifications,
• Architecture
Documents,
• IRD/ICD
• Sub-system /
Equipment User
Requirement
Documents
Ground Segments (telecom, navigation, observation)
• Architecture definition, early validation and
Interfaces mastering
• Definition of product line: variability management,
derivation of specification
Spacecrafts (telecom, observation, exploration)
• Sub-systems proper functional allocation and
specification
• Definition of product line: variability management,
derivation, specification of derivation
Sub-Systems &
Equipment
• Specification and link with software modeling tool
• Definition of building blocks
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Definition of operational concepts
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System need-level analysis
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Trade-offs based on reference architecture
Cost/Risk
Complexity
CPU
TM/TC Bandwidth
Security
Timing
Flexibiity
Responsiveness
Product Line
Legacy
Reliability
…
subsystems
specification
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Perform functional allocation
Alternative 1: Legacy payload Ground commands all the payload sub-systems
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Perform functional allocation
Alternative 2: Autonomous payload Manage its state itself
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Example of a Capella automation feature
Automated projection of functional allocation
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Global engineering environment
Partners & sub-contractors
Customer
Digital continuum
along satellite
lifecycle
Next phases C,D,E
Phase A
Phase B
Functional Design Physical Design Analysis Simulation
Consumption
Process
Engineering PDM
Production / AIT
Operations, functions, architecture Mechanical, thermal, etc. Mechanical, thermal, radiations, etc. Multi-physics, functional
MCI, Power, Dissipation
Workflows, KPI, reviews, etc.
Page 38
www.thalesgroup.com
THALES GROUP INTERNAL
Contact
Michel Reboul – TAS engineering director [email protected] Laëtitia Saoud – TAS MBSE methods & tools [email protected]
Gérald Garcia – TAS Processes, methods & tools Spacecraft advanced projects - Earth observation & science [email protected]
http://www.polarsys.org/capella