Acquisition and Early Evaluation of Architecture with ......F22 Functional analysis with Capella F1 F2F2 F1 F2 F1 F2 A A A B A B A A F1 F2 F21 F22 . 23 Ref number THALES GROUP OPEN

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

mailto:[email protected]

2 THALES GROUP OPEN

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Name of the company/ Template : 87204467-DOC-GRP-EN-002

€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

3 THALES GROUP OPEN

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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

4 THALES GROUP OPEN

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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

5 THALES GROUP OPEN

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Arcadia : A “Simple” Engineering Language

6 THALES GROUP OPEN

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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

8 THALES GROUP OPEN

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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

www.thalesgroup.com

THALES GROUP INTERNAL

Method and Workbench Highlights A COMPREHENSIVE, METHODOLOGICAL, AND TOOL-SUPPORTED APPROACH

Toronto, 2012

10 THALES GROUP OPEN

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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


DEVELOPED AND BUILT



M/T/B strategy,



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Buy Sub-contract Make Make Buy

Physical Architecture


DEVELOPED AND BUILT



M/T/B strategy,



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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



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F1

F2

F21

F22


F1

F2

F21

F22

F1

F2

F1

F2

F21

F22


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F1

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F21

F22


F1

F2

F21

F22

F1

F2

F1

F2

F1

F2

F1

F2

F21

F22


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F1

F2

F21

F22


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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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

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.

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