Length: 2 Days
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System Safety Course

System safety is a specialty within system engineering that supports program risk management.

It is the application of engineering and management principles, criteria and techniques to optimize safety.

The goal of system safety is to optimize safety by the identification of safety related risks, eliminating or controlling them by design and/or procedures, based on acceptable system safety precedence.

Experts in this area emphatically emphasize that system safety must be planned. It is an integrated and comprehensive engineering effort that requires a trained staff experienced in the application of safety engineering principles.

The minimum requirements for the approach include describing the risk management effort and how the program is integrating risk management into the systems engineering process, the Integrated Product Development process, and the overall program management structure.

System safety also involves identifying and documenting the prescribed and derived requirements applicable to the system; describing the process for inclusion of ESOH derived requirements in system specifications and the flow-down of applicable requirements to subcontractors, vendors and suppliers; and defining how risks are formally accepted by the appropriate risk acceptance authority.

The need for system safety and the methods it employs are driven by many factors, including the high cost of testing, which limits the ability to rely on test-fail-fix strategies of safe system development and drives reliance on analytical results.

Additionally, the need for system safety is driven by the development of systems that operate at the edge of engineering capability, requiring a high degree of discipline in system realization and system operation management and oversight.

Along with system safety procedures in the private sector, the Department of Defense also has its own standard called MIL-STD 882E, which identifies the DoD approach for identifying hazards and assessing and mitigating associated risks encountered in the development, test, production, use and disposal of defense systems.

MIL-STD-882E presents a singular linear relationship between the mechanism that triggers a hazard and the resulting mishap.

System Safety Course by Tonex

System Safety Course is a 2-day course covers important system safety concepts and techniques used in planning, designing, implementing, testing and operating safety-critical systems.

System safety is a specialty within system engineering that supports program and system risk management, application of safety engineering and management principles, criteria and techniques to optimize system safety. System Safety has to optimize safety by the identification of safety related risks for mission critical applications, eliminating or controlling safety risks by analysis, assessment, design, and V&V  procedures, based on acceptable/verifiable system safety precedence.

Participants will learn about  fundamental concepts of system safety engineering, systems safety control, nature of risk, accident and human error models, causes of accidents, system hazard analysis, designing for safety, fault tolerance, safety issues in the design of human-machine interaction, verification of safety, creating a safety culture, and management of safety-critical projects. Includes a class project involving the high-level system design and analysis of a safety-critical system.

Who Should Attend

This course is designed for analysts, systems engineers, hardware and software engineers, managers, and employees with little or no system safety experience. The course is also useful for those who have experience with system safety but have never had any formal training on the standard.

What You Will Learn

  • An overview of the system safety process
  • A summary of system safety tools and applications
  • How to practice system safety process
  • Understand the basic principles of systems safety
  • Avoid common errors in system safety
  • Prevent system safety issues and accidents
  • Perform system hazard analysis
  • Apply models and techniques of hazard and risk analysis
  • Crate safety management plans
  • Analyze requirements for designing and operating a safety management system
  • Learn about system safety root cause analysis
  • Develop requirements for system safety
  • Gain the ability to analyze system safety ConOps and requirements
  • Apply safety analysis as a part of high integrity hardware/software lifecycle
  • Learn how to perform a causal analysis of safety related accidents / incidents
  • Analyze the role of poor system design and poor management decision-making
  • Learn both traditional and new state-of-the-art hazard analysis techniques
  • Operate and manage safety-critical systems and projects
  • Implement operations safety management plan

Course Outline/Agenda

Overview of System Safety

  • System Safety Introduction
  • System Safety Definitions and Concepts
  • Tools to Specify, Design, Test, Operate and Maintain safety Critical Systems
  • Methods of Developing and Analyzing System Safety
  • System Safety Management
  • System Hazard and Risk analysis
  • System Safety Development Process
  • System Safety Requirements
  • System Safety Protocol Planning and Safety Analysis
  • Managing a System Safety Program
  • System Hazard Analyses Methods

Systems Safety Process

  • System Safety Planning Principles
  • Systems Theoretic Process Analysis (STPA)
  • Hazard Analysis
  • Comparative Safety Assessment
  • Models Used by System Safety for Analysis
  • Overview of SSA/FMEA/FHA
  • Determination of System Design Assurance Process
  • Define System Functions and Requirements
  • Design and Architecture of System
  • Define System Interfaces (ICD)
  • Analyze System Functions
  • Integrate HW, SW and Interfaces
  • Safety Verification, Validation and Testing
  • Risk Management Decision Making

Standards Associated System Safety Development

  • Safety-critical System Development Assurance and Certification
  • SAE ARP 4754A
  • SAE ARP 4761
  • RTCA DO-178C
  • RTCA DO-254

System Safety Assessment Elements

  • Functions, Design Constraints, Requirements
  • Functional Hazard Assessment
  • Identify Failure, Error Conditions According to Severity
  • Preliminary System Safety Assessment
  • Complete Failure conditions list
  • Generate Safety Requirements
  • System Safety Assessment
  • Comprehensive Analysis of Implementation
  • System Safety Assessment Practice

Integrated Safety Process and Development

  • System Requirements Identification
  • System Requirements Identification
  • Subsystem Requirements Identification
  • Subsystem Design
  • Subsystem Verification
  • System Verification
  • System Validation
  • Safety Assessment Example
  • Example of Severity
  • Likelihood of Occurrence Definitions
  • Safety Order of Precedence

Models for System Safety for Analysis

  • Analyze System Failure Modes and Root Causes
  • System Interfaces to Evaluate
  • Interface Type
  • Software and Firmware
  • Hardware Mechanical
  • Control
  • Data
  • Physical
  • Electrical
  • Aerodynamic
  • Hydraulic
  • Pneumatic
  • Electromagnetic

System Safety Modeling and Documentation

  • Safety Assessment Methodology
  • FHA (Functional Hazard Assessment)
  • PSSA (Preliminary System Safety Assessment)
  • SSA (System Safety Assessment)
  • FTA (Fault Tree Analysis)
  • DD (Dependency Diagram)
  • FMEA (Failure Mode and Effects Analysis)
  • CCA (Common Cause Analysis)

System Safety Management

  • Critical Functional Discipline
  • Phases of the Lifecycle of an Acquisition
  • FAA Order 8040.4
  • 5 step approach to safety risk management
  • Planning, Hazard Identification, Analysis, Assessment, and Decision
  • System safety must be planned. It is an integrated and comprehensive engineering effort that requires a trained staff experienced in the application of safety engineering principles
  • Transportation, logistics support, storage, packing, and handling
  • Commercial Off-the-Shelf (COTS) and Non-developmental Items (NDI)
  • Risk (hazard severity and likelihood of occurrence)
  • Hazards sub-categories
  • System states, environmental conditions or “initiating” and “contributing” hazards

System Safety Case Studies

  • NASA’s Columbia Space Shuttle (USA)
  • Oppau explosion, Germany
  • The disaster of courrières (France)
  • The explosion of benxihu colliery (China)
  • Bhopal accident, India
  • The Deepwater horizon oil disaster
  • The Chernobyl disaster (Ukraine)Uberlingen Mid-Air Collision
  • Fukushima and Chernobyl
  • February 5, 2020: Pegasus Airlines Flight 2193 operated by a Boeing 737-800
  • August 7, 2020: Air India Express Flight 1344, operated by a Boeing 737-800

System Safety Course

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