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This paper proposes Retrospective Validation method for working Programmable-Logic-Controller based Computerized System. The proposed method consists of three solutions; (1) clarify a validation concept for computerized system that is developed by combining several different categories, (2) Clarify risk reduction measures into four types (task, program, structure, and hardware modification), and (3)...
Risks in software development have emerged over time and so is the risk management. Quiet a few efforts have been done by the individuals and institutions to contribute in this area to help ensuring that the software development can be done without intervention of risks. This paper focuses on proposing a model that takes care of the most frequently occurring risks and provides a way for handling all...
implementations. It is hard to assess and cover all of the risk at developing assurance case. In this paper we propose a method to convert risk flow management to assurance case, and a support tool for collecting keywords for them. Our proposed method it to apply possible risks from the threat-source to harm level along with the
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