Integrated Dynamic Decision Analysis (IDDA): an Advanced Tool for Risk Analysis

  • Micaela Demichela
  • Norberto Piccinini


This paper shows a sample study where quantitative risk assessment of a tank containing a toxic substance was performed through IDDA method. A comparison is shown between the results obtained through IDDA analysis and the one obtained with classical QRA techniques (Recursive Operability Analysis and quantified Fault Tree directly extracted from it).

The IDDA method provides a full representation of the plant states during operations (ordinary, incidental or irregular operating conditions), as well as all the possible occurrences patterns (description of events), expressed in a set of mutually self-excluding sequences. Availability of the full set of alternative allows the complete spectrum of possible probability-consequence conditions to be used as a basis for decisions in risk reduction and control.


Fault Tree Inlet Flow Rate Quantitative Risk Assessment Fault Tree Analysis Probabilistic Safety Assessment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Piccinini, N., Scarrone M., and Ciarambino, I., “Probabilistic analysis of transient events by an event tree directly extracted from operability analysis”, J. Loss Prev. Process Ind., 7, 1, 1994, 23–32.CrossRefGoogle Scholar
  2. 2.
    Piccinini N. and Ciarambino I., “Operability analysis devoted to the development of logic trees”, Rel. Eng. Syst. Safety, 55, 1997, 227–241.CrossRefGoogle Scholar
  3. 3.
    Wakefield D.J. & Epstein S., Fault Tree Linking vs. Event Tree Linking, European Conference ESREL 2002, 19-21 March 2002, Lyon, France.Google Scholar
  4. 4.
    Lees, F. P., Loss prevention in the process industries: hazard identification, assessment and control, Butterworth — Heinemann, Oxford, 1996.Google Scholar
  5. 5.
    Galvagni, R. and Clementel, S., “Risk Analysis as an instrument of design”, in “Safety Design Criteria for Industrial Plant”, M. Cumo and A. Naviglio (eds.), CRC Press, Boca Raton, 1989.Google Scholar

Copyright information

© Springer-Verlag London 2004

Authors and Affiliations

  • Micaela Demichela
    • 1
  • Norberto Piccinini
    • 1
  1. 1.Dipartimento di Scienza dei Materiali e Ingegneria Chimica, Politecnico di TorinoSAfeR — Centro Studi su Sicurezza, Affidabilità e RischiItalia

Personalised recommendations