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SACE outline

Example 1 - Delivery robot
Example 2 - Self‐driving car
Note 1 - Defining capabilities
Note 2 - Iterative process
AS concept definition [A]

Example 3 - Autonomous cars
Example 4 - Office environment
Example 5 - Defining people
Note 3 - Challenges when defining an ODM

Example 6 - Office environment
Example 7 - Autonomous vehicle scenario
Note 4 - Scenes and scenarios
Note 5 - Resilience

AS operating context assurance argument pattern [G]

Example 8 - ODM and identified interactions
Note 8 - Mission and non-mission interactions

Example 9 - Decision point for an autonomous robot
Example 10 - Enumerated situations for an autonomous robot
Example 11 - Autonomous car turning at a roundabout
Example 12 - Autonomous insulin pump
Example 13 - Autonomous robot
Example 14 - Autonomous car
Example 15 - Autonomous insulin pump

Example 16 - Hazardous scenarios
Note 9 - System environmental belief state

AS hazardous scenarios assurance case pattern [I]

Example 17 - Autonomous car braking requirement
Example 18 - SOC for autonomous car on construction site
Example 19 - Autonomous insulin infusion pump
Example 20 - Autonomous passenger shuttle
Example 21 - Autonomous insulin infusion pump
Example 22 - Autonomous car in emergency roadworks
Note 10 - Requirements syntax
Note 11 - System-level safety requirements
Note 12 - Sufficient mitigation for hazardous scenarios
Definition of sufficiently safe [K]

Note 13 - Simulation

SOC argument pattern [N]

Note 19 - Definition of system architecture
Note 20 - Logical and physical structure of the system
Note 21 - Diversity in architecture redundancy
Note 22 - Fault tolerance approaches
Design process for tier n [X]

Note 23 - Independent reviewers

AS design assurance argument pattern [U]

Example 25 - Autonomous passenger shuttle
Note 24 - HAZOP analysis

Example 26 - Sensors for autonomous robot

AS hazardous failures argument pattern [DD]

Example 29 - Drone in severe weather conditions
Description of key features of environment outside ODM [FF]

Example 30 - Autonomous car leaving a motorway
Example 31 - Car's rainfall sensor
Note 27 - Challenges to recognising the ODM boundary

Example 32
ODM transition model [JJ]

Example 33 - Satellite ‘safe modes’
Note 28 - Handover
Stakeholder risk acceptance definition [LL]

AS Hazardous Scenarios Assurance Case Pattern PP [PP]

Example 34 - In‐the‐loop simulation

AS verification Log [SS]

AS verification argument pattern [UU]

AS safety requirements assurance

Objectives

  1. Define safety requirement for each tier of decomposition in the development of the AS.
  2. Validate the defined safety requirements.
  3. Create the safe requirements argument.

Inputs to the stage

  • [P] : Safety requirements from tier n‐1
  • [W] : tier n design
  • [S] : Safety requirements argument pattern

Outputs of the stage

  • [Q] : Safety requirements for tier n
  • [R] : Safety requirements justification report
  • [T] : Safety requirements argument
Continue to: Activity 13. Define safety requirements
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