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V1 | 2018-06-26
Webinar, 2018-11-07
Development of Functional Safe Systems using PREEvision
2
u PREEvision at a Glance
Introduction Functional Safety
PREEvision for Functional Safety
Summary
Agenda
3
Supported Use Cases
PREEvision at a Glance
E/E BackboneCollaboration Platform
File Management
Design of SafetyRelevant Systems
Product LineEngineering
ArchitectureDesign
RequirementsEngineering
Wiring HarnessDesign
AUTOSARSystem, Service and Software
Design
Communication Design(AUTOSAR and Legacy Formats)
Hardware ComponentDevelopment
Function-Driven Design
System Design
Test DataManagement
4
Overview
PREEvision at a Glance
M
M
M
M
5
PREEvision at a Glance
u Introduction Functional Safety
PREEvision for Functional Safety
Summary
Agenda
6
Challenges
Introduction Functional Safety
Airbag
Delayed deployment after crash detection
ESP
Unintended, single-sided brake effect on straight lane
Electronic Park Brake
Unintended activation in motion
Collision Avoidance
Acceleration instead of deceleration in traffic
Reality or science fiction – Is such a scenario realistic?
7
Challenges
Introduction Functional Safety
Core
Part
s
ISO 26262:2011-2012Road vehicles - Functional safety
Source: [ISO26262, 10-Fig.1]
ISO 26262
Complex standard Risk of overheads and costs if applied ad hoc
u 10 Parts
u 43 Chapters
u100 Work products
u180 Engineering methods
u500 Pages
u600 Requirements
8
ISO 26262 key deliverables have impact on all process areas
Challenges
Introduction Functional Safety
SystemReq. Analysis
ComponentTest
SystemDesign
ComponentReq. Analysis
ComponentImplementation
SystemIntegration
ComponentIntegration
ComponentDesign
SystemTest
Item Definition
Hazard and Risk Analysis
FunctionalSafety Concept
QualitativeSafety Analyses
QuantitativeSafety Analyses
Validation
Safety Case
Verification
TechnicalSafety Concept
HSI Specification
DIASafety Plan
9
High cost for ISO 26262 compliant work products
Challenges
Introduction Functional Safety
u Data for work products fragmented across legacy tools and documents
u System responsible, safety managers and engineers have to struggle withmultiple mostly inconsistent sources for producing the work products
u Maintaining traceability and consistency is inefficient, error prone anda source for quality and compliance problems
Verification
Safety Plan
FTA
HARAHW Analysis
Safety caseRequirements
Function / HW / SW Design
FMEA
10
PREEvision at a Glance
Introduction Functional Safety
u PREEvision for Functional Safety
Summary
Agenda
11
Integrated Model Based System Engineering Platform
PREEvision for Functional Safety
Safety Plan
Requirements Management
System / Function / HW /
SW Design
Test Management
Change Management
Safety Analysis Methods
Cost efficient consistency and traceability
12
ISO 26262 key areas supported by PREEvision
PREEvision for Functional Safety
SystemReq. Analysis
ComponentTest
SystemDesign
ComponentReq. Analysis
ComponentImplementation
SystemIntegration
ComponentIntegration
ComponentDesign
SystemTest
Item Definition
Hazard and Risk Analysis
FunctionalSafety Concept
QualitativeSafety Analyses
QuantitativeSafety Analyses
Validation
Safety Case
Verification
TechnicalSafety Concept
HSI Specification
DIASafety Plan
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
13
Item Definition
PREEvision for Functional Safety
Artifacts modeled in PREEvision:
u Feature specifications, functional and non-functional requirements
u Operating scenarios and operating modes
u Logical and topological system architecture including allocation of functions
u Dependencies with other systems
Item
Definitio
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azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
Item Definition
14
ISO 26262 key areas supported by PREEvision
PREEvision for Functional Safety
SystemReq. Analysis
ComponentTest
SystemDesign
ComponentReq. Analysis
ComponentImplementation
SystemIntegration
ComponentIntegration
ComponentDesign
SystemTest
Item Definition
Hazard and Risk Analysis
FunctionalSafety Concept
QualitativeSafety Analyses
QuantitativeSafety Analyses
Validation
Safety Case
Verification
TechnicalSafety Concept
HSI Specification
DIASafety Plan
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
15
u HAZOP is a qualitative analysis method tosystematically identify malfunctions for a system
u The malfunctions can be used in a following Hazard and Risk Analysis (HARA)to derive and classify hazardous events
u The malfunctions are identified based on defined guide words
u PREEvision supports HAZOPs with the HAZOP editor
u The following artifacts can be used as HAZOP items:logical functions, customer features, requirements
HAZard and OPerability Study (HAZOP) Editor
PREEvision for Functional SafetyIt
em
Definitio
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azard
Analy
sis
and
Ris
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ssessm
ent
Functional
Safe
ty C
oncept
Technic
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Safe
ty C
oncept
Hard
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Soft
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In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
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naly
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Hazard and Risk Analysis
16
u Pick functions and malfunctions from catalogues
u Pick operating scenarios and operating modes from catalogues
u Automatic calculation of Automotive Safety Integrity Level (ASIL) of hazardous events and derived safety goals
u Highlighting based on ASIL classification
u Create and link safety goals directly in table
u Set Safe State of Safety Goal
u Consistency checks and highlightinge.g. check ASIL classification of Hazardous Event against Safety Goal
Hazard Analysis and Risk Assessment (HARA) Editor
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
Hazard and Risk Analysis
17
ISO 26262 key areas supported by PREEvision
PREEvision for Functional Safety
SystemReq. Analysis
ComponentTest
SystemDesign
ComponentReq. Analysis
ComponentImplementation
SystemIntegration
ComponentIntegration
ComponentDesign
SystemTest
Item Definition
Hazard and Risk Analysis
FunctionalSafety Concept
QualitativeSafety Analyses
QuantitativeSafety Analyses
Validation
Safety Case
Verification
TechnicalSafety Concept
HSI Specification
DIASafety Plan
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
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18
u Support detailing safety goals via
u Refinement
u Decomposition
u Prevent errors and inconsistencies
u Trace tables with automatic validation of ASIL decomposition
u Increase efficiency and reduce manual efforts
u Automatically create valid decompositions of Safety Goals, Functional Safety Requirements and Technical Safety Requirements via metrics
Functional Safety Concept (FSC) - Requirements
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
FunctionalSafety Concept
19
Functional Safety Concept (FSC) - High Level
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
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Safe
ty C
oncept
Hard
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Soft
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In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
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FunctionalSafety Concept
20
Functional Safety Concept (FSC) – Detailed Level
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
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Safe
ty C
oncept
Hard
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Soft
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In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
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naly
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Qualita
tive
Safe
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naly
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FunctionalSafety Concept
21
u Tabular trace views visualize the allocation offunctional safety requirements to the preliminary architecture elements
Functional Safety Concept (FSC) - Requirements Allocation
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
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ssessm
ent
Functional
Safe
ty C
oncept
Technic
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Safe
ty C
oncept
Hard
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Soft
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In
terf
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HIS
)
Safe
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ase
Validation
Verification
Quantita
tive
Safe
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naly
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Qualita
tive
Safe
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naly
sis
FunctionalSafety Concept
22
u ISO 26262 compliant report forFunctional Safety Concept (FSC)
u Automatically generatedfrom model data
u Report template can be adapted to fit to company specific requirements
Functional Safety Concept (FSC) - Report
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
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Safe
ty C
oncept
Hard
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Soft
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In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
FunctionalSafety Concept
23
ISO 26262 key areas supported by PREEvision
PREEvision for Functional Safety
SystemReq. Analysis
ComponentTest
SystemDesign
ComponentReq. Analysis
ComponentImplementation
SystemIntegration
ComponentIntegration
ComponentDesign
SystemTest
Item Definition
Hazard and Risk Analysis
FunctionalSafety Concept
QualitativeSafety Analyses
QuantitativeSafety Analyses
Validation
Safety Case
Verification
TechnicalSafety Concept
HSI Specification
DIASafety Plan
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
24
Technical Safety Concept (TSC) – Hardware – High Level
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
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Safe
ty C
oncept
Hard
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Soft
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In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
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naly
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Qualita
tive
Safe
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TechnicalSafety Concept
u HW elements can be modeled and associated withtechnical safety requirements, faults and safety mechanisms
u Powerful library concept for faults and safety mechanisms
1) Example Based on ISO 26262 – 5, Annex D.1
25
Technical Safety Concept (TSC) – Hardware – Detailed Level
PREEvision for Functional Safety
1)Item
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Functional
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Technic
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Safe
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Hard
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Soft
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In
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HIS
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Safe
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ase
Validation
Verification
Quantita
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Safe
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Qualita
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Safe
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TechnicalSafety Concept
u HW elements can be modeled and associated withtechnical safety requirements, faults and safety mechanisms
u Powerful library concept for faults and safety mechanisms
u HW safety design can be detailed down to the device level
1) Example Based on ISO 26262 – 5, Annex E.1
26
u SW safety design, technical safety requirements (TSR), faults and safety mechanisms (SM)can be detailed down to ports, interfaces and data elements
u AUTOSAR Import / Export of SW Architecture
Technical Safety Concept (TSC) – Software – Detailed Level
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
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Safe
ty C
oncept
Hard
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Soft
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In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
TechnicalSafety Concept
27
u Tabular trace views visualize the allocation ofTechnical Safety Requirements (TSR) to the technical architecture elements
Technical Safety Concept (TSC) – Trace Editor
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
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Safe
ty C
oncept
Hard
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Soft
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In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
TechnicalSafety Concept
28
ISO 26262 key areas supported by PREEvision
PREEvision for Functional Safety
SystemReq. Analysis
ComponentTest
SystemDesign
ComponentReq. Analysis
ComponentImplementation
SystemIntegration
ComponentIntegration
ComponentDesign
SystemTest
Item Definition
Hazard and Risk Analysis
FunctionalSafety Concept
QualitativeSafety Analyses
QuantitativeSafety Analyses
Validation
Safety Case
Verification
TechnicalSafety Concept
HSI Specification
DIASafety Plan
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
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Safe
ty C
oncept
Hard
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Soft
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In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
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Qualita
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Safe
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u Efficiently specify HSI via HSI Editor
u Create HSI-Requirements directly in Editor
u Pick HW/SW Elements in Editor from existing Architecture
u Efficiently generate HSI Specification
u Work Product required byISO 26262-4/5/6
Hardware-Software Interface (HSI) Specification
PREEvision for Functional SafetyIt
em
Definitio
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azard
Analy
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and
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Functional
Safe
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oncept
Technic
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Safe
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oncept
Hard
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Soft
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In
terf
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HIS
)
Safe
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ase
Validation
Verification
Quantita
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Safe
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Qualita
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HSI Specification
See ISO 26262 – 4, Annex B
30
ISO 26262 key areas supported by PREEvision
PREEvision for Functional Safety
SystemReq. Analysis
ComponentTest
SystemDesign
ComponentReq. Analysis
ComponentImplementation
SystemIntegration
ComponentIntegration
ComponentDesign
SystemTest
Item Definition
Hazard and Risk Analysis
FunctionalSafety Concept
QualitativeSafety Analyses
QuantitativeSafety Analyses
Validation
Safety Case
Verification
TechnicalSafety Concept
HSI Specification
DIASafety Plan
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
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Safe
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oncept
Hard
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Soft
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In
terf
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HIS
)
Safe
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Validation
Verification
Quantita
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Qualita
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u Analysis leads to FMEA issues which can lead to new requirements or solutions
Failure Mode and Effects Analysis (FMEA)
PREEvision for Functional SafetyIt
em
Definitio
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azard
Analy
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Functional
Safe
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oncept
Technic
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Safe
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oncept
Hard
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Soft
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In
terf
ace (
HIS
)
Safe
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ase
Validation
Verification
Quantita
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Safe
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Qualita
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QualitativeSafety Analyses
u Use technical architecture to derive FMEA Parts
32
u Modeling of fault trees in malfunction diagrams
u Calculation of minimal cut sets
Qualitative Fault Tree Analysis (FTA)
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
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Qualita
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Safe
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QualitativeSafety Analyses
33
u Typical relevant information for analysis can be easily added to fault trees via diagram tables
u Visibility can be controlled via diagram filters
Qualitative Fault Tree Analysis (FTA)
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
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Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
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Soft
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In
terf
ace (
HIS
)
Safe
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ase
Validation
Verification
Quantita
tive
Safe
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Qualita
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Safe
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QualitativeSafety Analyses
34
u Efficient, redundancy free modelling of fault tree alternatives
u Alternatives of fault trees can be easily switched and visualized
u The only tool which supports analysis on alternatives of fault trees
Qualitative Fault Tree Analysis (FTA)
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
QualitativeSafety Analyses
35
ISO 26262 key areas supported by PREEvision
PREEvision for Functional Safety
SystemReq. Analysis
ComponentTest
SystemDesign
ComponentReq. Analysis
ComponentImplementation
SystemIntegration
ComponentIntegration
ComponentDesign
SystemTest
Item Definition
Hazard and Risk Analysis
FunctionalSafety Concept
QualitativeSafety Analyses
QuantitativeSafety Analyses
Validation
Safety Case
Verification
TechnicalSafety Concept
HSI Specification
DIASafety Plan
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
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Soft
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In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
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Qualita
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Safe
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u Modeling of fault trees in malfunction diagrams
u Calculation of minimal cut sets (with order and quantitative importance)
u Calculation of probabilities
Quantitative Fault Tree Analysis (FTA)
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
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ssessm
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Functional
Safe
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oncept
Technic
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Safe
ty C
oncept
Hard
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Soft
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In
terf
ace (
HIS
)
Safe
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ase
Validation
Verification
Quantita
tive
Safe
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Qualita
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Safe
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QuantitativeSafety Analyses
37
u Build failure mode library by convenient annotation of all HW library elements
u Dedicated Failure Mode Library Editor for high usability and efficiency
Hardware Architectural Metrics: Failure Mode Library
PREEvision for Functional Safety
Build / Edit Failure Mode
Library
Design Hardware Architecture
Perform Analysis with HW
ArchitecturalMetrics
Item
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Technic
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HIS
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Safe
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Validation
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u Use library elements during HW design as usual
u Increased efficiency by reusing failure mode definitions for design from library
Hardware Architectural Metrics: Using library elements
PREEvision for Functional Safety
Build / Edit FailureMode Library
Design Hardware Architecture
Perform Analysis with HW
ArchitecturalMetrics
Item
Definitio
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Functional
Safe
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Technic
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Hard
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Soft
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HIS
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Safe
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Validation
Verification
Quantita
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1) Example Based on ISO 26262 – 5, Annex E.1
39
u Allocate target values via D&D
u Assign safety mechanisms via D&D
u Convenient HW architectural metrics calculator
u Instant highlighting of fulfillments and violations
Hardware Architectural Metrics
PREEvision for Functional Safety
Build / Edit Failure Mode Library
Design Hardware Architecture
Perform Analysis with HW
Architectural Metrics
Item
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Functional
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Technic
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Hard
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Soft
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In
terf
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HIS
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Safe
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Validation
Verification
Quantita
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Safe
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Qualita
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Safe
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40
ISO 26262 key areas supported by PREEvision
PREEvision for Functional Safety
SystemReq. Analysis
ComponentTest
SystemDesign
ComponentReq. Analysis
ComponentImplementation
SystemIntegration
ComponentIntegration
ComponentDesign
SystemTest
Item Definition
Hazard and Risk Analysis
FunctionalSafety Concept
QualitativeSafety Analyses
QuantitativeSafety Analyses
Validation
Safety Case
Verification
TechnicalSafety Concept
HSI Specification
DIASafety Plan
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
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Safe
ty C
oncept
Hard
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Soft
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In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
41
Specification of Requirements & Tests
Execution & Documentationof Tests
Evaluation & Analysisof Test Results
Design & Implementationof Tests
Planningof Tests
Test Design & Implementation Tool
Vector3rd party
Traceability Information
SynchronizeTest Scripts
Test Execution Tool
Vector3rd party
Parse for Verdicts andRequirements / Test Specification Associations
PREEvision Test Engineering und Test Management: Information Flow
PREEvision for Functional Safety
PREEvision
Requirements
RequirementsEngineer
TestSpecifications
and Test Items
Derive
TestEngineer
Test Implementations
Manual test sequence
Test script
Create
Create
TestEngineer
TestEngineer
Test Plan and Test Tasks
Plan
TestManager
Test Execution
Verdict
ar
Verdict
ar
Execute
TestEngineer
Analysis
ReportReport
Report
Analyze
TestManager
File System
Requirements Source
RIF / ReqIFXLS
Import & Update
optional
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
42
Verification and Validation
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
Validation
Verification
43
ISO 26262 key areas supported by PREEvision
PREEvision for Functional Safety
SystemReq. Analysis
ComponentTest
SystemDesign
ComponentReq. Analysis
ComponentImplementation
SystemIntegration
ComponentIntegration
ComponentDesign
SystemTest
Item Definition
Hazard and Risk Analysis
FunctionalSafety Concept
QualitativeSafety Analyses
QuantitativeSafety Analyses
Validation
Safety Case
Verification
TechnicalSafety Concept
HSI Specification
DIASafety Plan
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
44
u Predefined safety plan template according to ISO 26262
u Can be adapted to match organizational needs
u Serves as process justification argument for safety case
u Can be used to generate DIA
Safety Plan
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
Safety Plan
45
u Predefined template for development interface agreement according to ISO 26262, including
u Distribution of safety activities between customer and supplier
u Responsible for each activity
u Data to be exchanged
Development Interface Agreement (DIA)
PREEvision for Functional Safety
u MS Excel
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
DIA
46
ISO 26262 key areas supported by PREEvision
PREEvision for Functional Safety
SystemReq. Analysis
ComponentTest
SystemDesign
ComponentReq. Analysis
ComponentImplementation
SystemIntegration
ComponentIntegration
ComponentDesign
SystemTest
Item Definition
Hazard and Risk Analysis
FunctionalSafety Concept
QualitativeSafety Analyses
QuantitativeSafety Analyses
Validation
Safety Case
Verification
TechnicalSafety Concept
HSI Specification
DIASafety Plan
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
47
Safety Case Report
u Based on work products and safety plan
u Always consistent, can be generated at any time
u Covers technical safety argument and process justification argument
Concept of safety case
PREEvision for Functional Safety
…
Safety Goals
Hazard and Risk
Assessment
Item Definition
Safety Plan
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
Safety Case
48
Workflow for generating safety case reports
PREEvision for Functional Safety
Safety Plan
Hazard and Risk Analysis
Item Definition
Functional Safety
ConceptFTA
…
Perform Safety Engineering Tasks
Generate Safety Case
Report
Check Consistency
of Work Products
Item
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
Safety Case
49
u Automatic support for review of safety deliverables via online checks
u Support for (safety) managers via safety cockpit
Safety assessment support
PREEvision for Functional SafetyIt
em
Definitio
nH
azard
Analy
sis
and
Ris
k A
ssessm
ent
Functional
Safe
ty C
oncept
Technic
al
Safe
ty C
oncept
Hard
ware
Soft
ware
In
terf
ace (
HIS
)
Safe
ty C
ase
Validation
Verification
Quantita
tive
Safe
ty A
naly
sis
Qualita
tive
Safe
ty A
naly
sis
Safety Case
50
PREEvision at a Glance
Introduction Functional Safety
PREEvision for Functional Safety
u Summary
Agenda
51
Advantages
Summary
Integrated approach
•Full traceability can be easily established and maintained
•Consistent work products
•Reduce cost for tool interfaces
Automated consistency checking of deliverables
•Relieve engineers from error prone and tedious tasks
•Provide safety managers with insight in status and progress
•Reduce effort for manual reviews and progress reports
Engineer safe products – generate compliant deliverables
•Deliverables can be generated from engineering data
•Reduced effort for compliant deliverables
52 © 2016. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. V1 | 2018-06-26
For more information about Vectorand our products please visit
www.vector.com
Author:Nico AdlerVector Germany
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