The descriptions are for modules currently being taught. They should be viewed as an example of the modules we provide. All modules are subject to change for later academic years.

System Safety Assessment (SSAS) 2011/2

Workload - Private Study - Assessment - Description - Learning Outcomes - Content - Teaching Materials - Recommended Books

Module Code COM00052M
Lecturers Mark Nicholson
Taken By SCSE, SSE
Number of Credits 10
Part A
Teaching Autumn 9
Open Assessment [100%] Aut/9/Thu -> Spr/4/Wed
Feedback: Spr/10/Wed

Module Prerequisites

Prerequisite knowledge

Basic Knowledge of safety terminology either through Foundations of System Safety Engineering module or demonstration of equivalent knowledge through industrial experience / previous education.

Workload

  • Lectures: 17hrs
  • Practicals: 18hrs
  • Private Study: 30hrs
  • Assessment: 35hrs

Assessment

Open Assessment

The open assesmsent will be handed out on the Thursday of the module and will be available through http://www-module.cs.york.ac.uk/ssas/ on the Friday. Please check back to the module web-page for the answers to any student questions.

Formative Feedback

Individual written feedback is provided via the online feedback system. There will be a general feedback on the answers I was expecting and individual feedback on how well you did for each question indicating which questions attracted a poor, good or excellent mark.

Description

This module aims to cover the analysis and assessment phase of the system safety engineering life-cycle for a proposed product or service. It does so by considering the inputs to this phase, the qualitative and quantitative analysis techinques that can be employed within this phase and the outputs from this phase in terms of evidence into the safety case regime. It also considers the changing assessment requirements as more integrated and complex systems are developed.

Learning Outcomes

a. Explain the role of system safety assessment in the safety lifecycle
b. Describe and participate in RBD, FMEA, Markov and cause-consequence techniques
c. Describe and participate in fault tree construction
d. Describe and participate in the production and evaluation of fault tree cut sets
e. Describe and participate in the production and evaluation of fault tree quantitative analysis
f. Select appropriate analysis techniques for particular situations
g. Assess the implications of the results of system safety analysis
h. Explain the role of system safety assessment techniques during detailed design
i. Explain the role and issues surrounding system safety analysis in safety arguments
j. Compare manual and automated performance of system safety assessment
k. Discuss the state of the art and future directions in system safety assessment
l. Critically evaluate performance of system safety assessment by others

Content

• Introduction to SSA Mathematics
• Reliability Block Diagrams 1
• Sneak Analysis
• Failure Modes and Effects Analysis
• Fault Tree Analysis: Construction
• Fault Tree Analysis: cut sets
• FTA: Quantitative Analysis
• Preliminary System Safety Assessment (PSSA)
• Markov Models
• Cause-Consequence Analysis
• Model Based Safety Assessment
• Data in Systems

Teaching Materials

A folder with presentations and case studies will be provided.

Recommended Books

Rating Author Title Publisher Year
**** JD Andrews & TR Moss Reliability and Risk Assessment Professional Engineering Publishing 2006
**** Nureg Fault Tree Handbook Nureg 1981
*** D E Kritzinger Aircraft system safety: Military and civil aeronautical applications Woodhead 2006
*** P. O'Brian Practical Reliability Engineering 5th ed wiley 2012
** N. Singpurwalla Reliability and Risk: Bayesian Perspective Wiley 2006
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Last updated: 20th April 2012