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Topics to be covered are as part of the course are (organized according to whether the application is mainly for safety-critical systems or production-critical systms, or both) presented below. Note that more than one lecture may be used to cover one particular topic. See the lecture plan for more details.

Subject area: Reliability analyses of safety-critical systems

  Lectured topics within this subject area are:

• Development of reliability requirements
  
  "Safety integrity level (SIL) is a key reliability performance measure used for safety-critical systems. Reliability requirements are therefore often given as SIL requirements are identified in an extension of the risk analysis, using methods often refered to as SIL allocation, SIL targeting and SIL classification. Key methods like Layers of protection analysis (LOPA), risk graph, and minimum SIL are presented and discussed."
  
• Reliability analyses: Extending with new analytical & dynamic modeling approaches.
  
  "In TPK 4120, some analytical formulas were introduced to calculate the average probability of failure on demand (PFD). It was also shown how the average PFD may be calculated using Markov methods and fault tree analysis. This reliability measure is of high importance in relation to SIL, as a relationship is established between a SIL requirement and the maximum PFD tolerated for a safety function. In this course, we go a step further and introduce the foundations for analytical formulas presented in IEC 61508 (a key standard for reliability of safety-critical systems), the PDS method (a method along with a set of analytical formulas widely adapted in the Norwegian oil and gas industry, but which has a wider application area), and dynamic modeling, using Petri Nets."
  
  
• Special analysis challenges (possible candidates for under this heading):
• Partial and imperfect testing
• Follow-up of SIL requirements in the operational phase
• Hardware fault tolerance - Hardware design constraints of safety-critical functions

Subject area: Maintenance optimization

   Lectured topics within this area are:

• Age, block and minimal repair strategies.

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There will be mandatory problems/tasks to solve as part of the course.

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