ARIANE Method: Analysis of obsolescence Risks, Impacts, criticality and their surveillANcE

Obsolescence is a major issue for industrial companies, as it can compromise the useful life of their systems. To mitigate its effects, it is crucial to manage it in advance. The obsolescence management process comprises several phases: preparation, identification, assessment, analysis and implementation. This article proposes a qualitative approach to the identification, assessment and analysis phases, known as the ARIANE method. ARIANE refers to “Analysis of Obsolescence Risks, Impacts, Criticality and their surveillANcE”. This method is fundamental to the systematic analysis of obsolescence risks, as it enables us to assess the potential impact and criticality of components within industrial systems. Its main objective is to assign an obsolescence exposure index to the problems identified, thus facilitating their prioritization and helping to guide the search for solutions during the analysis phase. In addition, the ARIANE method establishes appropriate monitoring mechanisms, ensuring proactive and effective obsolescence management over the long term. To illustrate the effectiveness of this approach, an example of application is presented through a radar monitoring system used in the aerospace industry in developing countries. This study highlights the ARIANE method’s ability to identify critical obsolescence risks and guide decision-making to ensure system sustainability.