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Coping with System Hazards in Early Project Life Cycle; Identification and Prioritization

Authors:
Mohammad Rajabalinejad

Keywords: consensus; hazards; uncertainty; prioritization; ranking.

Abstract:
The rising complexity of product and systems demands further attention to potential hazards. While researchers explore tools and methods to identify hazards, their prioritization remains a challenging task in a multi-stakeholder environment. A reason for this is that the hazards are hardly quantifiable. While the accurate quantification remains a challenge, a flexible and pluralistic approach can bring the important ones on top of the list. This paper offers a methodology for ranking hazards in early phases of design with presence of a high level of uncertainty. It uses a pluralistic approach for prioritization of hazards. It adapts probability theory to embed flexibly in communication with stakeholders and process the available information. A graphical tool facilitates this communication and probabilistically utilize available information about system hazards. It introduces the “degree of consensus” as a metric to rank the identified hazards. This metric represents the consent of stakeholders on the system of interest (SoI) concerns used for example in its architecture, design decisions, or alternative evaluation. The paper explains the mathematical formulation and presents an application example for this.

Pages: 7 to 12

Copyright: Copyright (c) IARIA, 2016

Publication date: February 21, 2016

Published in: conference

ISSN: 2308-3700

ISBN: 978-1-61208-522-7

Location: Lisbon, Portugal

Dates: from February 21, 2016 to February 25, 2016