Lecture 9 - Functional Safety: V-Model

Question 1

What are random and systematic failures?

Answer 1

• We need to address RANDOM and SYSTEMATIC FAILURES.
• Random – Occurring at random time
• # Example: Operator error with procedure, random component failure (e.g. light bulb blows)
• Systematic – Has a direct cause, eliminated by changing design, manufacturing or operational procedures, or relevant factors
• # Example: Design flaw, Ineffective Procedures, Calculation error, incorrect specification
• RANDOM Failures – Engineering Design
• SYSTEMATIC Failures – Engineering Lifecycle

Question 2

What is the V-Model and its phases?

Answer 2

REFER TO THE SLIDES

Question 3

What is the functional safety management plan?

Answer 3

• The V-Model must be documented!
• Safety Lifecycle, Deliverables
• # Roles & Responsibilities
• Competency Requirements
• Design guidelines, standards
• Verification, Validation Plans
• Management of Change Procedures
• Actions / Non-conformance
• FS Assessment